Home / 31,845.78-47,769.14-12,125.43

Finding the Fourth Proportional to 31,845.78, 47,769.14 and 12,125.43

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Solution

The fourth proportional to 31,845.78, 47,769.14 and 12,125.43 is: 18,188.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,845.78 : 47,769.14 = 12,125.43 : x
  2. Step 2: Convert to fraction form
    31,845.78/47,769.14 = 12,125.43/x
  3. Step 3: Cross multiply
    31,845.78x = 47,769.14 × 12,125.43
  4. Step 4: Simplify right side
    31,845.78x = 579,221,393.54
  5. Step 5: Solve for x
    x = 579,221,393.54/31,845.78
  6. Step 6: Final answer
    x = 18,188.32

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