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Finding the Fourth Proportional to 20,773.74, 31,164.72 and 7,626.24

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Solution

The fourth proportional to 20,773.74, 31,164.72 and 7,626.24 is: 11,440.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.74 : 31,164.72 = 7,626.24 : x
  2. Step 2: Convert to fraction form
    20,773.74/31,164.72 = 7,626.24/x
  3. Step 3: Cross multiply
    20,773.74x = 31,164.72 × 7,626.24
  4. Step 4: Simplify right side
    20,773.74x = 237,669,634.25
  5. Step 5: Solve for x
    x = 237,669,634.25/20,773.74
  6. Step 6: Final answer
    x = 11,440.87

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