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Finding the Fourth Proportional to 16,530.40, 24,795.60 and 15,947.20

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Solution

The fourth proportional to 16,530.40, 24,795.60 and 15,947.20 is: 23,920.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,530.40 : 24,795.60 = 15,947.20 : x
  2. Step 2: Convert to fraction form
    16,530.40/24,795.60 = 15,947.20/x
  3. Step 3: Cross multiply
    16,530.40x = 24,795.60 × 15,947.20
  4. Step 4: Simplify right side
    16,530.40x = 395,420,392.32
  5. Step 5: Solve for x
    x = 395,420,392.32/16,530.40
  6. Step 6: Final answer
    x = 23,920.80

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