Solve for X in a Trapezoid: Perimeter = 30.3 with Side 12x

To find $x$ in the trapezoid with a given perimeter $P = 30.3$, we follow these steps:

• Step 1: Write the perimeter equation using all sides: $12x + 8.7 + x + 2.4 = 30.3$.
• Step 2: Combine like terms: $13x + 11.1 = 30.3$.
• Step 3: Isolate $x$ by subtracting 11.1 from both sides: $13x = 19.2$.
• Step 4: Solve for $x$ by dividing both sides by 13: $x = \frac{19.2}{13} \approx 1.477$.

Therefore, the solution to the problem is $x = 1.477$.