Home / 18,228.70-27,342.24-5,080.78

Finding the Fourth Proportional to 18,228.70, 27,342.24 and 5,080.78

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Solution

The fourth proportional to 18,228.70, 27,342.24 and 5,080.78 is: 7,620.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,228.70 : 27,342.24 = 5,080.78 : x
  2. Step 2: Convert to fraction form
    18,228.70/27,342.24 = 5,080.78/x
  3. Step 3: Cross multiply
    18,228.70x = 27,342.24 × 5,080.78
  4. Step 4: Simplify right side
    18,228.70x = 138,919,906.15
  5. Step 5: Solve for x
    x = 138,919,906.15/18,228.70
  6. Step 6: Final answer
    x = 7,620.94

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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.