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Finding the Fourth Proportional to 31,798.73, 43,882.41 and 19,868.99

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Solution

The fourth proportional to 31,798.73, 43,882.41 and 19,868.99 is: 27,419.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,798.73 : 43,882.41 = 19,868.99 : x
  2. Step 2: Convert to fraction form
    31,798.73/43,882.41 = 19,868.99/x
  3. Step 3: Cross multiply
    31,798.73x = 43,882.41 × 19,868.99
  4. Step 4: Simplify right side
    31,798.73x = 871,898,946.05
  5. Step 5: Solve for x
    x = 871,898,946.05/31,798.73
  6. Step 6: Final answer
    x = 27,419.31

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