Home / 36,279.76-54,381.24-20,663.92

Finding the Fourth Proportional to 36,279.76, 54,381.24 and 20,663.92

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Solution

The fourth proportional to 36,279.76, 54,381.24 and 20,663.92 is: 30,974.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,279.76 : 54,381.24 = 20,663.92 : x
  2. Step 2: Convert to fraction form
    36,279.76/54,381.24 = 20,663.92/x
  3. Step 3: Cross multiply
    36,279.76x = 54,381.24 × 20,663.92
  4. Step 4: Simplify right side
    36,279.76x = 1,123,729,592.86
  5. Step 5: Solve for x
    x = 1,123,729,592.86/36,279.76
  6. Step 6: Final answer
    x = 30,974.01

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1.5x scale

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.