Home / 21,456.92-32,190.01-8,806.70

Finding the Fourth Proportional to 21,456.92, 32,190.01 and 8,806.70

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Solution

The fourth proportional to 21,456.92, 32,190.01 and 8,806.70 is: 13,211.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,456.92 : 32,190.01 = 8,806.70 : x
  2. Step 2: Convert to fraction form
    21,456.92/32,190.01 = 8,806.70/x
  3. Step 3: Cross multiply
    21,456.92x = 32,190.01 × 8,806.70
  4. Step 4: Simplify right side
    21,456.92x = 283,487,761.07
  5. Step 5: Solve for x
    x = 283,487,761.07/21,456.92
  6. Step 6: Final answer
    x = 13,211.95

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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.