Home / 28,584.72-42,861.24-8,857.92

Finding the Fourth Proportional to 28,584.72, 42,861.24 and 8,857.92

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Solution

The fourth proportional to 28,584.72, 42,861.24 and 8,857.92 is: 13,281.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,584.72 : 42,861.24 = 8,857.92 : x
  2. Step 2: Convert to fraction form
    28,584.72/42,861.24 = 8,857.92/x
  3. Step 3: Cross multiply
    28,584.72x = 42,861.24 × 8,857.92
  4. Step 4: Simplify right side
    28,584.72x = 379,661,435.02
  5. Step 5: Solve for x
    x = 379,661,435.02/28,584.72
  6. Step 6: Final answer
    x = 13,281.97

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Why These Related Problems?

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