Home / 18,550.38-27,765.36-13,618.92

Finding the Fourth Proportional to 18,550.38, 27,765.36 and 13,618.92

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Solution

The fourth proportional to 18,550.38, 27,765.36 and 13,618.92 is: 20,384.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,550.38 : 27,765.36 = 13,618.92 : x
  2. Step 2: Convert to fraction form
    18,550.38/27,765.36 = 13,618.92/x
  3. Step 3: Cross multiply
    18,550.38x = 27,765.36 × 13,618.92
  4. Step 4: Simplify right side
    18,550.38x = 378,134,216.61
  5. Step 5: Solve for x
    x = 378,134,216.61/18,550.38
  6. Step 6: Final answer
    x = 20,384.18

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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.