Home / 38,468.20-57,691.50-18,747.40

Finding the Fourth Proportional to 38,468.20, 57,691.50 and 18,747.40

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Solution

The fourth proportional to 38,468.20, 57,691.50 and 18,747.40 is: 28,115.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,468.20 : 57,691.50 = 18,747.40 : x
  2. Step 2: Convert to fraction form
    38,468.20/57,691.50 = 18,747.40/x
  3. Step 3: Cross multiply
    38,468.20x = 57,691.50 × 18,747.40
  4. Step 4: Simplify right side
    38,468.20x = 1,081,565,627.10
  5. Step 5: Solve for x
    x = 1,081,565,627.10/38,468.20
  6. Step 6: Final answer
    x = 28,115.84

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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.