Home / 27,153.62-40,719.90-9,381

Finding the Fourth Proportional to 27,153.62, 40,719.90 and 9,381

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Solution

The fourth proportional to 27,153.62, 40,719.90 and 9,381 is: 14,067.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,153.62 : 40,719.90 = 9,381 : x
  2. Step 2: Convert to fraction form
    27,153.62/40,719.90 = 9,381/x
  3. Step 3: Cross multiply
    27,153.62x = 40,719.90 × 9,381
  4. Step 4: Simplify right side
    27,153.62x = 381,993,381.90
  5. Step 5: Solve for x
    x = 381,993,381.90/27,153.62
  6. Step 6: Final answer
    x = 14,067.86

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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.