Home / 18,640.53-27,974.46-13,723.43

Finding the Fourth Proportional to 18,640.53, 27,974.46 and 13,723.43

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Solution

The fourth proportional to 18,640.53, 27,974.46 and 13,723.43 is: 20,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,640.53 : 27,974.46 = 13,723.43 : x
  2. Step 2: Convert to fraction form
    18,640.53/27,974.46 = 13,723.43/x
  3. Step 3: Cross multiply
    18,640.53x = 27,974.46 × 13,723.43
  4. Step 4: Simplify right side
    18,640.53x = 383,905,455.19
  5. Step 5: Solve for x
    x = 383,905,455.19/18,640.53
  6. Step 6: Final answer
    x = 20,595.20

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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.