Home / 42,456.75-63,694.32-12,876.85

Finding the Fourth Proportional to 42,456.75, 63,694.32 and 12,876.85

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Solution

The fourth proportional to 42,456.75, 63,694.32 and 12,876.85 is: 19,318.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,456.75 : 63,694.32 = 12,876.85 : x
  2. Step 2: Convert to fraction form
    42,456.75/63,694.32 = 12,876.85/x
  3. Step 3: Cross multiply
    42,456.75x = 63,694.32 × 12,876.85
  4. Step 4: Simplify right side
    42,456.75x = 820,182,204.49
  5. Step 5: Solve for x
    x = 820,182,204.49/42,456.75
  6. Step 6: Final answer
    x = 19,318.06

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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.