Home / 38,765.62-58,111.51-12,451.90

Finding the Fourth Proportional to 38,765.62, 58,111.51 and 12,451.90

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Solution

The fourth proportional to 38,765.62, 58,111.51 and 12,451.90 is: 18,665.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,765.62 : 58,111.51 = 12,451.90 : x
  2. Step 2: Convert to fraction form
    38,765.62/58,111.51 = 12,451.90/x
  3. Step 3: Cross multiply
    38,765.62x = 58,111.51 × 12,451.90
  4. Step 4: Simplify right side
    38,765.62x = 723,598,711.37
  5. Step 5: Solve for x
    x = 723,598,711.37/38,765.62
  6. Step 6: Final answer
    x = 18,665.99

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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.