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Finding the Fourth Proportional to 22,280.63, 33,435.52 and 8,429.63

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Solution

The fourth proportional to 22,280.63, 33,435.52 and 8,429.63 is: 12,649.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,280.63 : 33,435.52 = 8,429.63 : x
  2. Step 2: Convert to fraction form
    22,280.63/33,435.52 = 8,429.63/x
  3. Step 3: Cross multiply
    22,280.63x = 33,435.52 × 8,429.63
  4. Step 4: Simplify right side
    22,280.63x = 281,848,874.21
  5. Step 5: Solve for x
    x = 281,848,874.21/22,280.63
  6. Step 6: Final answer
    x = 12,649.95

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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.