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Finding the Fourth Proportional to 16,232.28, 22,400.50 and 8,780.28

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Solution

The fourth proportional to 16,232.28, 22,400.50 and 8,780.28 is: 12,116.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,232.28 : 22,400.50 = 8,780.28 : x
  2. Step 2: Convert to fraction form
    16,232.28/22,400.50 = 8,780.28/x
  3. Step 3: Cross multiply
    16,232.28x = 22,400.50 × 8,780.28
  4. Step 4: Simplify right side
    16,232.28x = 196,682,662.14
  5. Step 5: Solve for x
    x = 196,682,662.14/16,232.28
  6. Step 6: Final answer
    x = 12,116.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.