Home / 18,660.53-25,753.35-13,936.61

Finding the Fourth Proportional to 18,660.53, 25,753.35 and 13,936.61

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Solution

The fourth proportional to 18,660.53, 25,753.35 and 13,936.61 is: 19,233.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,660.53 : 25,753.35 = 13,936.61 : x
  2. Step 2: Convert to fraction form
    18,660.53/25,753.35 = 13,936.61/x
  3. Step 3: Cross multiply
    18,660.53x = 25,753.35 × 13,936.61
  4. Step 4: Simplify right side
    18,660.53x = 358,914,395.14
  5. Step 5: Solve for x
    x = 358,914,395.14/18,660.53
  6. Step 6: Final answer
    x = 19,233.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.