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Finding the Fourth Proportional to 38,400, 57,622.68 and 16,211.94

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Solution

The fourth proportional to 38,400, 57,622.68 and 16,211.94 is: 24,327.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,400 : 57,622.68 = 16,211.94 : x
  2. Step 2: Convert to fraction form
    38,400/57,622.68 = 16,211.94/x
  3. Step 3: Cross multiply
    38,400x = 57,622.68 × 16,211.94
  4. Step 4: Simplify right side
    38,400x = 934,175,430.80
  5. Step 5: Solve for x
    x = 934,175,430.80/38,400
  6. Step 6: Final answer
    x = 24,327.49

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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.