Question

if 10,20,x and 40 are in a proportion, the value of x will be​

Answer 1

Answer:

We have,

10, 20, x and 40 are in a proportion.

10 : 20 : : x : 40

To find, the value of x = ?

We know that,

a : b : : c : d

Product of means = Product of extremes

a × d = b × c

∴ 20 × x = 10 × 40

⇒ 20x = 400

⇒ x =  

⇒ x = 20

∴ The value of x = 20

Thus, the value of x is equal to 20.

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

=10*40=20*x {product of means = product of extremes}

10*40 divided by 20=400 divided by 20=   20