Question

If (A:20:4:16) is a proportion the find out the value of A fastly​

Answer 1

Answer: A = 5

Step-by-step explanation:

I'll rewrite this as fractions.

$\frac{A}{20}=\frac{4}{16}$

Solve for A,

$A=\frac{20*4}{16}\\ A=\frac{80}{16}$

$A=5$