Home / 21,625.29-32,456.17-8,486.89

Finding the Fourth Proportional to 21,625.29, 32,456.17 and 8,486.89

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Solution

The fourth proportional to 21,625.29, 32,456.17 and 8,486.89 is: 12,737.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,625.29 : 32,456.17 = 8,486.89 : x
  2. Step 2: Convert to fraction form
    21,625.29/32,456.17 = 8,486.89/x
  3. Step 3: Cross multiply
    21,625.29x = 32,456.17 × 8,486.89
  4. Step 4: Simplify right side
    21,625.29x = 275,451,902.18
  5. Step 5: Solve for x
    x = 275,451,902.18/21,625.29
  6. Step 6: Final answer
    x = 12,737.49

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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.