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Finding the Fourth Proportional to 31,695.64, 47,498.10 and 17,815.48

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Solution

The fourth proportional to 31,695.64, 47,498.10 and 17,815.48 is: 26,697.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,695.64 : 47,498.10 = 17,815.48 : x
  2. Step 2: Convert to fraction form
    31,695.64/47,498.10 = 17,815.48/x
  3. Step 3: Cross multiply
    31,695.64x = 47,498.10 × 17,815.48
  4. Step 4: Simplify right side
    31,695.64x = 846,201,450.59
  5. Step 5: Solve for x
    x = 846,201,450.59/31,695.64
  6. Step 6: Final answer
    x = 26,697.72

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