Home / 27,885.78-38,480.01-15,947.18

Finding the Fourth Proportional to 27,885.78, 38,480.01 and 15,947.18

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Solution

The fourth proportional to 27,885.78, 38,480.01 and 15,947.18 is: 22,005.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,885.78 : 38,480.01 = 15,947.18 : x
  2. Step 2: Convert to fraction form
    27,885.78/38,480.01 = 15,947.18/x
  3. Step 3: Cross multiply
    27,885.78x = 38,480.01 × 15,947.18
  4. Step 4: Simplify right side
    27,885.78x = 613,647,645.87
  5. Step 5: Solve for x
    x = 613,647,645.87/27,885.78
  6. Step 6: Final answer
    x = 22,005.76

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Double scale
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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.