Home / 27,680.50-38,198.96-15,105.26

Finding the Fourth Proportional to 27,680.50, 38,198.96 and 15,105.26

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Solution

The fourth proportional to 27,680.50, 38,198.96 and 15,105.26 is: 20,845.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,680.50 : 38,198.96 = 15,105.26 : x
  2. Step 2: Convert to fraction form
    27,680.50/38,198.96 = 15,105.26/x
  3. Step 3: Cross multiply
    27,680.50x = 38,198.96 × 15,105.26
  4. Step 4: Simplify right side
    27,680.50x = 577,005,222.53
  5. Step 5: Solve for x
    x = 577,005,222.53/27,680.50
  6. Step 6: Final answer
    x = 20,845.19

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Double 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.