Home / 28,236.80-42,348.10-11,601.43

Finding the Fourth Proportional to 28,236.80, 42,348.10 and 11,601.43

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Solution

The fourth proportional to 28,236.80, 42,348.10 and 11,601.43 is: 17,399.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,236.80 : 42,348.10 = 11,601.43 : x
  2. Step 2: Convert to fraction form
    28,236.80/42,348.10 = 11,601.43/x
  3. Step 3: Cross multiply
    28,236.80x = 42,348.10 × 11,601.43
  4. Step 4: Simplify right side
    28,236.80x = 491,298,404.66
  5. Step 5: Solve for x
    x = 491,298,404.66/28,236.80
  6. Step 6: Final answer
    x = 17,399.22

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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.