Home / 19,724.72-29,546.56-13,129.68

Finding the Fourth Proportional to 19,724.72, 29,546.56 and 13,129.68

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Solution

The fourth proportional to 19,724.72, 29,546.56 and 13,129.68 is: 19,667.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,724.72 : 29,546.56 = 13,129.68 : x
  2. Step 2: Convert to fraction form
    19,724.72/29,546.56 = 13,129.68/x
  3. Step 3: Cross multiply
    19,724.72x = 29,546.56 × 13,129.68
  4. Step 4: Simplify right side
    19,724.72x = 387,936,877.90
  5. Step 5: Solve for x
    x = 387,936,877.90/19,724.72
  6. Step 6: Final answer
    x = 19,667.55

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