Home / 18,229.70-27,343.74-5,081.78

Finding the Fourth Proportional to 18,229.70, 27,343.74 and 5,081.78

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Solution

The fourth proportional to 18,229.70, 27,343.74 and 5,081.78 is: 7,622.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,229.70 : 27,343.74 = 5,081.78 : x
  2. Step 2: Convert to fraction form
    18,229.70/27,343.74 = 5,081.78/x
  3. Step 3: Cross multiply
    18,229.70x = 27,343.74 × 5,081.78
  4. Step 4: Simplify right side
    18,229.70x = 138,954,871.06
  5. Step 5: Solve for x
    x = 138,954,871.06/18,229.70
  6. Step 6: Final answer
    x = 7,622.44

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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.