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Finding the Fourth Proportional to 31,492.71, 47,255.47 and 13,958.44

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Solution

The fourth proportional to 31,492.71, 47,255.47 and 13,958.44 is: 20,944.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,492.71 : 47,255.47 = 13,958.44 : x
  2. Step 2: Convert to fraction form
    31,492.71/47,255.47 = 13,958.44/x
  3. Step 3: Cross multiply
    31,492.71x = 47,255.47 × 13,958.44
  4. Step 4: Simplify right side
    31,492.71x = 659,612,489.63
  5. Step 5: Solve for x
    x = 659,612,489.63/31,492.71
  6. Step 6: Final answer
    x = 20,944.93

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