Home / 27,691.19-38,213.84-15,115.94

Finding the Fourth Proportional to 27,691.19, 38,213.84 and 15,115.94

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Solution

The fourth proportional to 27,691.19, 38,213.84 and 15,115.94 is: 20,860.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,691.19 : 38,213.84 = 15,115.94 : x
  2. Step 2: Convert to fraction form
    27,691.19/38,213.84 = 15,115.94/x
  3. Step 3: Cross multiply
    27,691.19x = 38,213.84 × 15,115.94
  4. Step 4: Simplify right side
    27,691.19x = 577,638,112.61
  5. Step 5: Solve for x
    x = 577,638,112.61/27,691.19
  6. Step 6: Final answer
    x = 20,860.00

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Half scale
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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.