Home / 21,934.20-32,885.10-12,084.60

Finding the Fourth Proportional to 21,934.20, 32,885.10 and 12,084.60

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Solution

The fourth proportional to 21,934.20, 32,885.10 and 12,084.60 is: 18,117.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,934.20 : 32,885.10 = 12,084.60 : x
  2. Step 2: Convert to fraction form
    21,934.20/32,885.10 = 12,084.60/x
  3. Step 3: Cross multiply
    21,934.20x = 32,885.10 × 12,084.60
  4. Step 4: Simplify right side
    21,934.20x = 397,403,279.46
  5. Step 5: Solve for x
    x = 397,403,279.46/21,934.20
  6. Step 6: Final answer
    x = 18,117.97

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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.