Home / 22,718.28-34,081.76-7,931.43

Finding the Fourth Proportional to 22,718.28, 34,081.76 and 7,931.43

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Solution

The fourth proportional to 22,718.28, 34,081.76 and 7,931.43 is: 11,898.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,718.28 : 34,081.76 = 7,931.43 : x
  2. Step 2: Convert to fraction form
    22,718.28/34,081.76 = 7,931.43/x
  3. Step 3: Cross multiply
    22,718.28x = 34,081.76 × 7,931.43
  4. Step 4: Simplify right side
    22,718.28x = 270,317,054.06
  5. Step 5: Solve for x
    x = 270,317,054.06/22,718.28
  6. Step 6: Final answer
    x = 11,898.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.