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Finding the Fourth Proportional to 35,821.70, 53,732.55 and 31,447.70

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Solution

The fourth proportional to 35,821.70, 53,732.55 and 31,447.70 is: 47,171.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,821.70 : 53,732.55 = 31,447.70 : x
  2. Step 2: Convert to fraction form
    35,821.70/53,732.55 = 31,447.70/x
  3. Step 3: Cross multiply
    35,821.70x = 53,732.55 × 31,447.70
  4. Step 4: Simplify right side
    35,821.70x = 1,689,765,112.64
  5. Step 5: Solve for x
    x = 1,689,765,112.64/35,821.70
  6. Step 6: Final answer
    x = 47,171.55

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