How do you solve $\frac{28}{42} = \frac{x}{6}$ $\frac { 28} { 42} = x/6$ ?

Question

2230 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-02-06T19:37:48

Use the cross-products property.

For proportion $\frac{a}{b} = \frac{c}{d}$ $a/b=c/d$ , $a \cdot d = b \cdot c$ $a*d=b*c$ .

To solve your proportion, $\frac{28}{42} = \frac{x}{6}$ $28/42=x/6$ , we can use the cross products property to restate the problem:

$28 \cdot 6 = 42 \cdot x$ $28*6=42*x$

therefore

$168 = 42 x$ $168=42x$

and by dividing both sides by 42,

$4 = x$ $4=x$

How do you solve \frac { 28} { 42} = x/62842=x6\frac { 28} { 42} = x/6?