Home / 19,874.96-27,424.32-11,375.12

Finding the Fourth Proportional to 19,874.96, 27,424.32 and 11,375.12

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Solution

The fourth proportional to 19,874.96, 27,424.32 and 11,375.12 is: 15,695.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,874.96 : 27,424.32 = 11,375.12 : x
  2. Step 2: Convert to fraction form
    19,874.96/27,424.32 = 11,375.12/x
  3. Step 3: Cross multiply
    19,874.96x = 27,424.32 × 11,375.12
  4. Step 4: Simplify right side
    19,874.96x = 311,954,793.80
  5. Step 5: Solve for x
    x = 311,954,793.80/19,874.96
  6. Step 6: Final answer
    x = 15,695.87

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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.