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Finding the Fourth Proportional to 22,640.76, 33,961.01 and 12,318.12

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Solution

The fourth proportional to 22,640.76, 33,961.01 and 12,318.12 is: 18,477.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,640.76 : 33,961.01 = 12,318.12 : x
  2. Step 2: Convert to fraction form
    22,640.76/33,961.01 = 12,318.12/x
  3. Step 3: Cross multiply
    22,640.76x = 33,961.01 × 12,318.12
  4. Step 4: Simplify right side
    22,640.76x = 418,335,734.91
  5. Step 5: Solve for x
    x = 418,335,734.91/22,640.76
  6. Step 6: Final answer
    x = 18,477.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.