Home / 38,747.70-58,126.41-12,451.86

Finding the Fourth Proportional to 38,747.70, 58,126.41 and 12,451.86

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Solution

The fourth proportional to 38,747.70, 58,126.41 and 12,451.86 is: 18,679.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,747.70 : 58,126.41 = 12,451.86 : x
  2. Step 2: Convert to fraction form
    38,747.70/58,126.41 = 12,451.86/x
  3. Step 3: Cross multiply
    38,747.70x = 58,126.41 × 12,451.86
  4. Step 4: Simplify right side
    38,747.70x = 723,781,919.62
  5. Step 5: Solve for x
    x = 723,781,919.62/38,747.70
  6. Step 6: Final answer
    x = 18,679.35

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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.