Home / 28,625-42,936.64-11,757.42

Finding the Fourth Proportional to 28,625, 42,936.64 and 11,757.42

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Solution

The fourth proportional to 28,625, 42,936.64 and 11,757.42 is: 17,635.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,625 : 42,936.64 = 11,757.42 : x
  2. Step 2: Convert to fraction form
    28,625/42,936.64 = 11,757.42/x
  3. Step 3: Cross multiply
    28,625x = 42,936.64 × 11,757.42
  4. Step 4: Simplify right side
    28,625x = 504,824,109.87
  5. Step 5: Solve for x
    x = 504,824,109.87/28,625
  6. Step 6: Final answer
    x = 17,635.78

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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.