Home / 22,611.86-31,202.27-12,540.11

Finding the Fourth Proportional to 22,611.86, 31,202.27 and 12,540.11

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Solution

The fourth proportional to 22,611.86, 31,202.27 and 12,540.11 is: 17,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,611.86 : 31,202.27 = 12,540.11 : x
  2. Step 2: Convert to fraction form
    22,611.86/31,202.27 = 12,540.11/x
  3. Step 3: Cross multiply
    22,611.86x = 31,202.27 × 12,540.11
  4. Step 4: Simplify right side
    22,611.86x = 391,279,898.05
  5. Step 5: Solve for x
    x = 391,279,898.05/22,611.86
  6. Step 6: Final answer
    x = 17,304.19

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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.