Home / 20,786.72-31,180.10-5,793.24

Finding the Fourth Proportional to 20,786.72, 31,180.10 and 5,793.24

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Solution

The fourth proportional to 20,786.72, 31,180.10 and 5,793.24 is: 8,689.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,786.72 : 31,180.10 = 5,793.24 : x
  2. Step 2: Convert to fraction form
    20,786.72/31,180.10 = 5,793.24/x
  3. Step 3: Cross multiply
    20,786.72x = 31,180.10 × 5,793.24
  4. Step 4: Simplify right side
    20,786.72x = 180,633,773.56
  5. Step 5: Solve for x
    x = 180,633,773.56/20,786.72
  6. Step 6: Final answer
    x = 8,689.87

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