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Finding the Fourth Proportional to 27,944.40, 41,912.55 and 8,220.90

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Solution

The fourth proportional to 27,944.40, 41,912.55 and 8,220.90 is: 12,330.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,944.40 : 41,912.55 = 8,220.90 : x
  2. Step 2: Convert to fraction form
    27,944.40/41,912.55 = 8,220.90/x
  3. Step 3: Cross multiply
    27,944.40x = 41,912.55 × 8,220.90
  4. Step 4: Simplify right side
    27,944.40x = 344,558,882.30
  5. Step 5: Solve for x
    x = 344,558,882.30/27,944.40
  6. Step 6: Final answer
    x = 12,330.16

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Similar ratio
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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.