Home / 22,611.41-31,204.11-12,540.26

Finding the Fourth Proportional to 22,611.41, 31,204.11 and 12,540.26

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Solution

The fourth proportional to 22,611.41, 31,204.11 and 12,540.26 is: 17,305.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,611.41 : 31,204.11 = 12,540.26 : x
  2. Step 2: Convert to fraction form
    22,611.41/31,204.11 = 12,540.26/x
  3. Step 3: Cross multiply
    22,611.41x = 31,204.11 × 12,540.26
  4. Step 4: Simplify right side
    22,611.41x = 391,307,652.47
  5. Step 5: Solve for x
    x = 391,307,652.47/22,611.41
  6. Step 6: Final answer
    x = 17,305.76

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Half scale
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Double scale
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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.