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Finding the Fourth Proportional to 18,262.20, 27,404.10 and 12,040.20

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Solution

The fourth proportional to 18,262.20, 27,404.10 and 12,040.20 is: 18,067.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,262.20 : 27,404.10 = 12,040.20 : x
  2. Step 2: Convert to fraction form
    18,262.20/27,404.10 = 12,040.20/x
  3. Step 3: Cross multiply
    18,262.20x = 27,404.10 × 12,040.20
  4. Step 4: Simplify right side
    18,262.20x = 329,950,844.82
  5. Step 5: Solve for x
    x = 329,950,844.82/18,262.20
  6. Step 6: Final answer
    x = 18,067.42

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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.