Home / 38,607.17-57,920.13-12,311.87

Finding the Fourth Proportional to 38,607.17, 57,920.13 and 12,311.87

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Solution

The fourth proportional to 38,607.17, 57,920.13 and 12,311.87 is: 18,470.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,607.17 : 57,920.13 = 12,311.87 : x
  2. Step 2: Convert to fraction form
    38,607.17/57,920.13 = 12,311.87/x
  3. Step 3: Cross multiply
    38,607.17x = 57,920.13 × 12,311.87
  4. Step 4: Simplify right side
    38,607.17x = 713,104,821.34
  5. Step 5: Solve for x
    x = 713,104,821.34/38,607.17
  6. Step 6: Final answer
    x = 18,470.79

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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.