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Finding the Fourth Proportional to 28,962, 43,472.12 and 19,571.92

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Solution

The fourth proportional to 28,962, 43,472.12 and 19,571.92 is: 29,377.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,962 : 43,472.12 = 19,571.92 : x
  2. Step 2: Convert to fraction form
    28,962/43,472.12 = 19,571.92/x
  3. Step 3: Cross multiply
    28,962x = 43,472.12 × 19,571.92
  4. Step 4: Simplify right side
    28,962x = 850,832,854.87
  5. Step 5: Solve for x
    x = 850,832,854.87/28,962
  6. Step 6: Final answer
    x = 29,377.56

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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.