Home / 27,778.11-38,335.83-15,841.74

Finding the Fourth Proportional to 27,778.11, 38,335.83 and 15,841.74

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Solution

The fourth proportional to 27,778.11, 38,335.83 and 15,841.74 is: 21,862.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,778.11 : 38,335.83 = 15,841.74 : x
  2. Step 2: Convert to fraction form
    27,778.11/38,335.83 = 15,841.74/x
  3. Step 3: Cross multiply
    27,778.11x = 38,335.83 × 15,841.74
  4. Step 4: Simplify right side
    27,778.11x = 607,306,251.54
  5. Step 5: Solve for x
    x = 607,306,251.54/27,778.11
  6. Step 6: Final answer
    x = 21,862.76

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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.