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Finding the Fourth Proportional to 20,405.52, 30,605.40 and 6,552.72

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Solution

The fourth proportional to 20,405.52, 30,605.40 and 6,552.72 is: 9,828.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,405.52 : 30,605.40 = 6,552.72 : x
  2. Step 2: Convert to fraction form
    20,405.52/30,605.40 = 6,552.72/x
  3. Step 3: Cross multiply
    20,405.52x = 30,605.40 × 6,552.72
  4. Step 4: Simplify right side
    20,405.52x = 200,548,616.69
  5. Step 5: Solve for x
    x = 200,548,616.69/20,405.52
  6. Step 6: Final answer
    x = 9,828.16

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