Home / 28,081.73-38,761.37-17,329.89

Finding the Fourth Proportional to 28,081.73, 38,761.37 and 17,329.89

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Solution

The fourth proportional to 28,081.73, 38,761.37 and 17,329.89 is: 23,920.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081.73 : 38,761.37 = 17,329.89 : x
  2. Step 2: Convert to fraction form
    28,081.73/38,761.37 = 17,329.89/x
  3. Step 3: Cross multiply
    28,081.73x = 38,761.37 × 17,329.89
  4. Step 4: Simplify right side
    28,081.73x = 671,730,375.25
  5. Step 5: Solve for x
    x = 671,730,375.25/28,081.73
  6. Step 6: Final answer
    x = 23,920.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.