Home / 19,843.17-29,719.38-12,896.61

Finding the Fourth Proportional to 19,843.17, 29,719.38 and 12,896.61

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Solution

The fourth proportional to 19,843.17, 29,719.38 and 12,896.61 is: 19,315.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,843.17 : 29,719.38 = 12,896.61 : x
  2. Step 2: Convert to fraction form
    19,843.17/29,719.38 = 12,896.61/x
  3. Step 3: Cross multiply
    19,843.17x = 29,719.38 × 12,896.61
  4. Step 4: Simplify right side
    19,843.17x = 383,279,253.30
  5. Step 5: Solve for x
    x = 383,279,253.30/19,843.17
  6. Step 6: Final answer
    x = 19,315.42

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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.