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Finding the Fourth Proportional to 36,607.68, 54,863.52 and 20,819.97

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Solution

The fourth proportional to 36,607.68, 54,863.52 and 20,819.97 is: 31,202.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,607.68 : 54,863.52 = 20,819.97 : x
  2. Step 2: Convert to fraction form
    36,607.68/54,863.52 = 20,819.97/x
  3. Step 3: Cross multiply
    36,607.68x = 54,863.52 × 20,819.97
  4. Step 4: Simplify right side
    36,607.68x = 1,142,256,840.49
  5. Step 5: Solve for x
    x = 1,142,256,840.49/36,607.68
  6. Step 6: Final answer
    x = 31,202.66

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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.