Question

if 5,x,x,20 are in proportion find the value of x​

Answer 1

Answer:

5/x=x/20

100 = x^2

x= (root)100

x=10

Answer 2

Answer:

5:10:10:20

Step-by-step explanation:

5:x:x:20

Product of extremes =product of means

=

$5 \times 20 = x \times x \\ 100 = x {}^{2} \\ x {}^{2} = 100 \\ x = \sqrt{100}$

Therefore, x=10