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Finding the Fourth Proportional to 31,661.22, 47,467.14 and 15,858.12

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Solution

The fourth proportional to 31,661.22, 47,467.14 and 15,858.12 is: 23,774.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,661.22 : 47,467.14 = 15,858.12 : x
  2. Step 2: Convert to fraction form
    31,661.22/47,467.14 = 15,858.12/x
  3. Step 3: Cross multiply
    31,661.22x = 47,467.14 × 15,858.12
  4. Step 4: Simplify right side
    31,661.22x = 752,739,602.18
  5. Step 5: Solve for x
    x = 752,739,602.18/31,661.22
  6. Step 6: Final answer
    x = 23,774.81

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