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Finding the Fourth Proportional to 26,712.80, 39,992.40 and 16,344.80

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Solution

The fourth proportional to 26,712.80, 39,992.40 and 16,344.80 is: 24,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,712.80 : 39,992.40 = 16,344.80 : x
  2. Step 2: Convert to fraction form
    26,712.80/39,992.40 = 16,344.80/x
  3. Step 3: Cross multiply
    26,712.80x = 39,992.40 × 16,344.80
  4. Step 4: Simplify right side
    26,712.80x = 653,667,779.52
  5. Step 5: Solve for x
    x = 653,667,779.52/26,712.80
  6. Step 6: Final answer
    x = 24,470.21

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