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Finding the Fourth Proportional to 28,067.88, 38,734.56 and 15,492.36

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Solution

The fourth proportional to 28,067.88, 38,734.56 and 15,492.36 is: 21,379.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,067.88 : 38,734.56 = 15,492.36 : x
  2. Step 2: Convert to fraction form
    28,067.88/38,734.56 = 15,492.36/x
  3. Step 3: Cross multiply
    28,067.88x = 38,734.56 × 15,492.36
  4. Step 4: Simplify right side
    28,067.88x = 600,089,747.96
  5. Step 5: Solve for x
    x = 600,089,747.96/28,067.88
  6. Step 6: Final answer
    x = 21,379.95

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