Home / 21,396.60-32,092.47-8,247.87

Finding the Fourth Proportional to 21,396.60, 32,092.47 and 8,247.87

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Solution

The fourth proportional to 21,396.60, 32,092.47 and 8,247.87 is: 12,370.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,396.60 : 32,092.47 = 8,247.87 : x
  2. Step 2: Convert to fraction form
    21,396.60/32,092.47 = 8,247.87/x
  3. Step 3: Cross multiply
    21,396.60x = 32,092.47 × 8,247.87
  4. Step 4: Simplify right side
    21,396.60x = 264,694,520.54
  5. Step 5: Solve for x
    x = 264,694,520.54/21,396.60
  6. Step 6: Final answer
    x = 12,370.87

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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.