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Finding the Fourth Proportional to 13,829.44, 20,752.80 and 5,621.44

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Solution

The fourth proportional to 13,829.44, 20,752.80 and 5,621.44 is: 8,435.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,829.44 : 20,752.80 = 5,621.44 : x
  2. Step 2: Convert to fraction form
    13,829.44/20,752.80 = 5,621.44/x
  3. Step 3: Cross multiply
    13,829.44x = 20,752.80 × 5,621.44
  4. Step 4: Simplify right side
    13,829.44x = 116,660,620.03
  5. Step 5: Solve for x
    x = 116,660,620.03/13,829.44
  6. Step 6: Final answer
    x = 8,435.67

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