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Finding the Fourth Proportional to 21,491.33, 32,248.76 and 8,344.22

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Solution

The fourth proportional to 21,491.33, 32,248.76 and 8,344.22 is: 12,520.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,491.33 : 32,248.76 = 8,344.22 : x
  2. Step 2: Convert to fraction form
    21,491.33/32,248.76 = 8,344.22/x
  3. Step 3: Cross multiply
    21,491.33x = 32,248.76 × 8,344.22
  4. Step 4: Simplify right side
    21,491.33x = 269,090,545.20
  5. Step 5: Solve for x
    x = 269,090,545.20/21,491.33
  6. Step 6: Final answer
    x = 12,520.89

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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.