Home / 31,887.20-47,773.20-27,279.20

Finding the Fourth Proportional to 31,887.20, 47,773.20 and 27,279.20

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Solution

The fourth proportional to 31,887.20, 47,773.20 and 27,279.20 is: 40,869.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,887.20 : 47,773.20 = 27,279.20 : x
  2. Step 2: Convert to fraction form
    31,887.20/47,773.20 = 27,279.20/x
  3. Step 3: Cross multiply
    31,887.20x = 47,773.20 × 27,279.20
  4. Step 4: Simplify right side
    31,887.20x = 1,303,214,677.44
  5. Step 5: Solve for x
    x = 1,303,214,677.44/31,887.20
  6. Step 6: Final answer
    x = 40,869.52

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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.