Home / 38,589.11-57,887.82-12,287.70

Finding the Fourth Proportional to 38,589.11, 57,887.82 and 12,287.70

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Solution

The fourth proportional to 38,589.11, 57,887.82 and 12,287.70 is: 18,432.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,589.11 : 57,887.82 = 12,287.70 : x
  2. Step 2: Convert to fraction form
    38,589.11/57,887.82 = 12,287.70/x
  3. Step 3: Cross multiply
    38,589.11x = 57,887.82 × 12,287.70
  4. Step 4: Simplify right side
    38,589.11x = 711,308,165.81
  5. Step 5: Solve for x
    x = 711,308,165.81/38,589.11
  6. Step 6: Final answer
    x = 18,432.87

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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.