Home / 18,487.28-27,732.72-17,490.80

Finding the Fourth Proportional to 18,487.28, 27,732.72 and 17,490.80

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Solution

The fourth proportional to 18,487.28, 27,732.72 and 17,490.80 is: 26,237.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.28 : 27,732.72 = 17,490.80 : x
  2. Step 2: Convert to fraction form
    18,487.28/27,732.72 = 17,490.80/x
  3. Step 3: Cross multiply
    18,487.28x = 27,732.72 × 17,490.80
  4. Step 4: Simplify right side
    18,487.28x = 485,067,458.98
  5. Step 5: Solve for x
    x = 485,067,458.98/18,487.28
  6. Step 6: Final answer
    x = 26,237.90

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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.