Home / 21,542.85-32,301.05-8,379.90

Finding the Fourth Proportional to 21,542.85, 32,301.05 and 8,379.90

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Solution

The fourth proportional to 21,542.85, 32,301.05 and 8,379.90 is: 12,564.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,542.85 : 32,301.05 = 8,379.90 : x
  2. Step 2: Convert to fraction form
    21,542.85/32,301.05 = 8,379.90/x
  3. Step 3: Cross multiply
    21,542.85x = 32,301.05 × 8,379.90
  4. Step 4: Simplify right side
    21,542.85x = 270,679,527.00
  5. Step 5: Solve for x
    x = 270,679,527.00/21,542.85
  6. Step 6: Final answer
    x = 12,564.70

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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.