Home / 18,229.38-27,343.68-5,081.40

Finding the Fourth Proportional to 18,229.38, 27,343.68 and 5,081.40

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Solution

The fourth proportional to 18,229.38, 27,343.68 and 5,081.40 is: 7,621.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,229.38 : 27,343.68 = 5,081.40 : x
  2. Step 2: Convert to fraction form
    18,229.38/27,343.68 = 5,081.40/x
  3. Step 3: Cross multiply
    18,229.38x = 27,343.68 × 5,081.40
  4. Step 4: Simplify right side
    18,229.38x = 138,944,175.55
  5. Step 5: Solve for x
    x = 138,944,175.55/18,229.38
  6. Step 6: Final answer
    x = 7,621.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.