Home / 22,611.85-31,202.13-12,540.12

Finding the Fourth Proportional to 22,611.85, 31,202.13 and 12,540.12

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Solution

The fourth proportional to 22,611.85, 31,202.13 and 12,540.12 is: 17,304.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,611.85 : 31,202.13 = 12,540.12 : x
  2. Step 2: Convert to fraction form
    22,611.85/31,202.13 = 12,540.12/x
  3. Step 3: Cross multiply
    22,611.85x = 31,202.13 × 12,540.12
  4. Step 4: Simplify right side
    22,611.85x = 391,278,454.46
  5. Step 5: Solve for x
    x = 391,278,454.46/22,611.85
  6. Step 6: Final answer
    x = 17,304.13

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.