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Finding the Fourth Proportional to 20,943.76, 31,417.17 and 7,796.13

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Solution

The fourth proportional to 20,943.76, 31,417.17 and 7,796.13 is: 11,694.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,943.76 : 31,417.17 = 7,796.13 : x
  2. Step 2: Convert to fraction form
    20,943.76/31,417.17 = 7,796.13/x
  3. Step 3: Cross multiply
    20,943.76x = 31,417.17 × 7,796.13
  4. Step 4: Simplify right side
    20,943.76x = 244,932,341.55
  5. Step 5: Solve for x
    x = 244,932,341.55/20,943.76
  6. Step 6: Final answer
    x = 11,694.76

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