Home / 25,562.80-38,293.11-20,306.71

Finding the Fourth Proportional to 25,562.80, 38,293.11 and 20,306.71

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Solution

The fourth proportional to 25,562.80, 38,293.11 and 20,306.71 is: 30,419.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,562.80 : 38,293.11 = 20,306.71 : x
  2. Step 2: Convert to fraction form
    25,562.80/38,293.11 = 20,306.71/x
  3. Step 3: Cross multiply
    25,562.80x = 38,293.11 × 20,306.71
  4. Step 4: Simplify right side
    25,562.80x = 777,607,079.77
  5. Step 5: Solve for x
    x = 777,607,079.77/25,562.80
  6. Step 6: Final answer
    x = 30,419.48

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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.