Home / 38,935.62-58,397.94-12,640.68

Finding the Fourth Proportional to 38,935.62, 58,397.94 and 12,640.68

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Solution

The fourth proportional to 38,935.62, 58,397.94 and 12,640.68 is: 18,959.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,935.62 : 58,397.94 = 12,640.68 : x
  2. Step 2: Convert to fraction form
    38,935.62/58,397.94 = 12,640.68/x
  3. Step 3: Cross multiply
    38,935.62x = 58,397.94 × 12,640.68
  4. Step 4: Simplify right side
    38,935.62x = 738,189,672.20
  5. Step 5: Solve for x
    x = 738,189,672.20/38,935.62
  6. Step 6: Final answer
    x = 18,959.24

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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.