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Finding the Fourth Proportional to 20,733.51, 31,078.83 and 9,631.14

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Solution

The fourth proportional to 20,733.51, 31,078.83 and 9,631.14 is: 14,436.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.51 : 31,078.83 = 9,631.14 : x
  2. Step 2: Convert to fraction form
    20,733.51/31,078.83 = 9,631.14/x
  3. Step 3: Cross multiply
    20,733.51x = 31,078.83 × 9,631.14
  4. Step 4: Simplify right side
    20,733.51x = 299,324,562.77
  5. Step 5: Solve for x
    x = 299,324,562.77/20,733.51
  6. Step 6: Final answer
    x = 14,436.75

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