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Finding the Fourth Proportional to 31,806.56, 43,897.08 and 19,231.28

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Solution

The fourth proportional to 31,806.56, 43,897.08 and 19,231.28 is: 26,541.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,806.56 : 43,897.08 = 19,231.28 : x
  2. Step 2: Convert to fraction form
    31,806.56/43,897.08 = 19,231.28/x
  3. Step 3: Cross multiply
    31,806.56x = 43,897.08 × 19,231.28
  4. Step 4: Simplify right side
    31,806.56x = 844,197,036.66
  5. Step 5: Solve for x
    x = 844,197,036.66/31,806.56
  6. Step 6: Final answer
    x = 26,541.60

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