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Finding the Fourth Proportional to 39,472.70, 59,213.04 and 12,817.58

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Solution

The fourth proportional to 39,472.70, 59,213.04 and 12,817.58 is: 19,227.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,472.70 : 59,213.04 = 12,817.58 : x
  2. Step 2: Convert to fraction form
    39,472.70/59,213.04 = 12,817.58/x
  3. Step 3: Cross multiply
    39,472.70x = 59,213.04 × 12,817.58
  4. Step 4: Simplify right side
    39,472.70x = 758,967,517.09
  5. Step 5: Solve for x
    x = 758,967,517.09/39,472.70
  6. Step 6: Final answer
    x = 19,227.66

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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.