Home / 27,778.11-38,336.18-15,841.95

Finding the Fourth Proportional to 27,778.11, 38,336.18 and 15,841.95

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Solution

The fourth proportional to 27,778.11, 38,336.18 and 15,841.95 is: 21,863.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,778.11 : 38,336.18 = 15,841.95 : x
  2. Step 2: Convert to fraction form
    27,778.11/38,336.18 = 15,841.95/x
  3. Step 3: Cross multiply
    27,778.11x = 38,336.18 × 15,841.95
  4. Step 4: Simplify right side
    27,778.11x = 607,319,846.75
  5. Step 5: Solve for x
    x = 607,319,846.75/27,778.11
  6. Step 6: Final answer
    x = 21,863.25

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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.