Home / 22,611.98-31,204.76-12,540.57

Finding the Fourth Proportional to 22,611.98, 31,204.76 and 12,540.57

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Solution

The fourth proportional to 22,611.98, 31,204.76 and 12,540.57 is: 17,306.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,611.98 : 31,204.76 = 12,540.57 : x
  2. Step 2: Convert to fraction form
    22,611.98/31,204.76 = 12,540.57/x
  3. Step 3: Cross multiply
    22,611.98x = 31,204.76 × 12,540.57
  4. Step 4: Simplify right side
    22,611.98x = 391,325,414.41
  5. Step 5: Solve for x
    x = 391,325,414.41/22,611.98
  6. Step 6: Final answer
    x = 17,306.11

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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.