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Finding the Fourth Proportional to 28,541.88, 42,797.43 and 8,815.14

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Solution

The fourth proportional to 28,541.88, 42,797.43 and 8,815.14 is: 13,217.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,541.88 : 42,797.43 = 8,815.14 : x
  2. Step 2: Convert to fraction form
    28,541.88/42,797.43 = 8,815.14/x
  3. Step 3: Cross multiply
    28,541.88x = 42,797.43 × 8,815.14
  4. Step 4: Simplify right side
    28,541.88x = 377,265,337.09
  5. Step 5: Solve for x
    x = 377,265,337.09/28,541.88
  6. Step 6: Final answer
    x = 13,217.96

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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.