Home / 22,611.19-31,205.42-13,179.55

Finding the Fourth Proportional to 22,611.19, 31,205.42 and 13,179.55

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Solution

The fourth proportional to 22,611.19, 31,205.42 and 13,179.55 is: 18,188.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,611.19 : 31,205.42 = 13,179.55 : x
  2. Step 2: Convert to fraction form
    22,611.19/31,205.42 = 13,179.55/x
  3. Step 3: Cross multiply
    22,611.19x = 31,205.42 × 13,179.55
  4. Step 4: Simplify right side
    22,611.19x = 411,273,327.26
  5. Step 5: Solve for x
    x = 411,273,327.26/22,611.19
  6. Step 6: Final answer
    x = 18,188.93

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Half scale
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Double scale
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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.