Home / 36,931.24-55,333.84-20,305.20

Finding the Fourth Proportional to 36,931.24, 55,333.84 and 20,305.20

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Solution

The fourth proportional to 36,931.24, 55,333.84 and 20,305.20 is: 30,423.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,931.24 : 55,333.84 = 20,305.20 : x
  2. Step 2: Convert to fraction form
    36,931.24/55,333.84 = 20,305.20/x
  3. Step 3: Cross multiply
    36,931.24x = 55,333.84 × 20,305.20
  4. Step 4: Simplify right side
    36,931.24x = 1,123,564,687.97
  5. Step 5: Solve for x
    x = 1,123,564,687.97/36,931.24
  6. Step 6: Final answer
    x = 30,423.15

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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.