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Finding the Fourth Proportional to 31,854.84, 47,770.74 and 10,791.48

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Solution

The fourth proportional to 31,854.84, 47,770.74 and 10,791.48 is: 16,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,854.84 : 47,770.74 = 10,791.48 : x
  2. Step 2: Convert to fraction form
    31,854.84/47,770.74 = 10,791.48/x
  3. Step 3: Cross multiply
    31,854.84x = 47,770.74 × 10,791.48
  4. Step 4: Simplify right side
    31,854.84x = 515,516,985.30
  5. Step 5: Solve for x
    x = 515,516,985.30/31,854.84
  6. Step 6: Final answer
    x = 16,183.32

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