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Finding the Fourth Proportional to 23,165.64, 31,971.66 and 13,342.68

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Solution

The fourth proportional to 23,165.64, 31,971.66 and 13,342.68 is: 18,414.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,165.64 : 31,971.66 = 13,342.68 : x
  2. Step 2: Convert to fraction form
    23,165.64/31,971.66 = 13,342.68/x
  3. Step 3: Cross multiply
    23,165.64x = 31,971.66 × 13,342.68
  4. Step 4: Simplify right side
    23,165.64x = 426,587,628.45
  5. Step 5: Solve for x
    x = 426,587,628.45/23,165.64
  6. Step 6: Final answer
    x = 18,414.67

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