Home / 22,622.11-31,212.08-13,188.85

Finding the Fourth Proportional to 22,622.11, 31,212.08 and 13,188.85

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Solution

The fourth proportional to 22,622.11, 31,212.08 and 13,188.85 is: 18,196.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,622.11 : 31,212.08 = 13,188.85 : x
  2. Step 2: Convert to fraction form
    22,622.11/31,212.08 = 13,188.85/x
  3. Step 3: Cross multiply
    22,622.11x = 31,212.08 × 13,188.85
  4. Step 4: Simplify right side
    22,622.11x = 411,651,441.31
  5. Step 5: Solve for x
    x = 411,651,441.31/22,622.11
  6. Step 6: Final answer
    x = 18,196.86

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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.