Home / 21,781.88-32,650.76-14,762.61

Finding the Fourth Proportional to 21,781.88, 32,650.76 and 14,762.61

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Solution

The fourth proportional to 21,781.88, 32,650.76 and 14,762.61 is: 22,128.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,781.88 : 32,650.76 = 14,762.61 : x
  2. Step 2: Convert to fraction form
    21,781.88/32,650.76 = 14,762.61/x
  3. Step 3: Cross multiply
    21,781.88x = 32,650.76 × 14,762.61
  4. Step 4: Simplify right side
    21,781.88x = 482,010,436.08
  5. Step 5: Solve for x
    x = 482,010,436.08/21,781.88
  6. Step 6: Final answer
    x = 22,128.96

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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.