A $20,000 loan is to be amortized for 10 years with quarterly payments of $699.44. If the interest rate is 7%, compounded quarterly, what is the unpaid balance immediately after the sixth payment

Respuesta :

Answer:

The answer is "17809.46"

Explanation:

Given:

P= $20,000

quarterly payment k= $699.44

interest rate quarterly r= 7%

[tex]r=\frac{7}{400}\\\\r= 0.0175[/tex]

n=6

Formula:

[tex]\ unpaid \ balance = P(1+r)^n-K\times \frac{(1+r)^n-1}{r}[/tex]

                        [tex]=20,000(1+0.0175)^6-699.44\times \frac{(1+0.0175)^6-1}{0.0175}\\\\=20,000(1.0175)^6-699.44\times \frac{(1.0175)^6-1}{0.0175}\\\\=20,000\times 1.10970235-699.44\times \frac{1.10970235-1}{0.0175}\\\\=22,194.047-699.44 \times \frac{0.10970235}{0.0175}\\\\=22,194.047-699.44 \times 6.26870571\\\\=22,194.047-4384.58352\\\\=17809.4635\\\\[/tex]

The final answer is "[tex]\bold{= 17809.46}\\[/tex]".