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Finding the Fourth Proportional to 22,168.32, 33,240.96 and 8,309.76

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Solution

The fourth proportional to 22,168.32, 33,240.96 and 8,309.76 is: 12,460.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,168.32 : 33,240.96 = 8,309.76 : x
  2. Step 2: Convert to fraction form
    22,168.32/33,240.96 = 8,309.76/x
  3. Step 3: Cross multiply
    22,168.32x = 33,240.96 × 8,309.76
  4. Step 4: Simplify right side
    22,168.32x = 276,224,399.77
  5. Step 5: Solve for x
    x = 276,224,399.77/22,168.32
  6. Step 6: Final answer
    x = 12,460.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.