Home / 38,785.08-58,177.62-12,491.88

Finding the Fourth Proportional to 38,785.08, 58,177.62 and 12,491.88

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Solution

The fourth proportional to 38,785.08, 58,177.62 and 12,491.88 is: 18,737.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,785.08 : 58,177.62 = 12,491.88 : x
  2. Step 2: Convert to fraction form
    38,785.08/58,177.62 = 12,491.88/x
  3. Step 3: Cross multiply
    38,785.08x = 58,177.62 × 12,491.88
  4. Step 4: Simplify right side
    38,785.08x = 726,747,847.73
  5. Step 5: Solve for x
    x = 726,747,847.73/38,785.08
  6. Step 6: Final answer
    x = 18,737.82

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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.