Home / 27,618.18-38,112.93-15,042.66

Finding the Fourth Proportional to 27,618.18, 38,112.93 and 15,042.66

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Solution

The fourth proportional to 27,618.18, 38,112.93 and 15,042.66 is: 20,758.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,618.18 : 38,112.93 = 15,042.66 : x
  2. Step 2: Convert to fraction form
    27,618.18/38,112.93 = 15,042.66/x
  3. Step 3: Cross multiply
    27,618.18x = 38,112.93 × 15,042.66
  4. Step 4: Simplify right side
    27,618.18x = 573,319,847.59
  5. Step 5: Solve for x
    x = 573,319,847.59/27,618.18
  6. Step 6: Final answer
    x = 20,758.78

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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.