Home / 27,854.92-38,439.84-15,279.76

Finding the Fourth Proportional to 27,854.92, 38,439.84 and 15,279.76

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Solution

The fourth proportional to 27,854.92, 38,439.84 and 15,279.76 is: 21,086.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,854.92 : 38,439.84 = 15,279.76 : x
  2. Step 2: Convert to fraction form
    27,854.92/38,439.84 = 15,279.76/x
  3. Step 3: Cross multiply
    27,854.92x = 38,439.84 × 15,279.76
  4. Step 4: Simplify right side
    27,854.92x = 587,351,529.64
  5. Step 5: Solve for x
    x = 587,351,529.64/27,854.92
  6. Step 6: Final answer
    x = 21,086.10

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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.