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Finding the Fourth Proportional to 40,337.52, 60,376.80 and 21,570.64

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Solution

The fourth proportional to 40,337.52, 60,376.80 and 21,570.64 is: 32,286.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,337.52 : 60,376.80 = 21,570.64 : x
  2. Step 2: Convert to fraction form
    40,337.52/60,376.80 = 21,570.64/x
  3. Step 3: Cross multiply
    40,337.52x = 60,376.80 × 21,570.64
  4. Step 4: Simplify right side
    40,337.52x = 1,302,366,217.15
  5. Step 5: Solve for x
    x = 1,302,366,217.15/40,337.52
  6. Step 6: Final answer
    x = 32,286.72

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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.