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Finding the Fourth Proportional to 20,608.44, 28,452.41 and 15,819.22

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Solution

The fourth proportional to 20,608.44, 28,452.41 and 15,819.22 is: 21,840.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,608.44 : 28,452.41 = 15,819.22 : x
  2. Step 2: Convert to fraction form
    20,608.44/28,452.41 = 15,819.22/x
  3. Step 3: Cross multiply
    20,608.44x = 28,452.41 × 15,819.22
  4. Step 4: Simplify right side
    20,608.44x = 450,094,783.09
  5. Step 5: Solve for x
    x = 450,094,783.09/20,608.44
  6. Step 6: Final answer
    x = 21,840.31

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