Home / 27,951.92-41,768.18-21,251.60

Finding the Fourth Proportional to 27,951.92, 41,768.18 and 21,251.60

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Solution

The fourth proportional to 27,951.92, 41,768.18 and 21,251.60 is: 31,755.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,951.92 : 41,768.18 = 21,251.60 : x
  2. Step 2: Convert to fraction form
    27,951.92/41,768.18 = 21,251.60/x
  3. Step 3: Cross multiply
    27,951.92x = 41,768.18 × 21,251.60
  4. Step 4: Simplify right side
    27,951.92x = 887,640,654.09
  5. Step 5: Solve for x
    x = 887,640,654.09/27,951.92
  6. Step 6: Final answer
    x = 31,755.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.