Home / 28,761.70-39,691.08-16,186.48

Finding the Fourth Proportional to 28,761.70, 39,691.08 and 16,186.48

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Solution

The fourth proportional to 28,761.70, 39,691.08 and 16,186.48 is: 22,337.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,761.70 : 39,691.08 = 16,186.48 : x
  2. Step 2: Convert to fraction form
    28,761.70/39,691.08 = 16,186.48/x
  3. Step 3: Cross multiply
    28,761.70x = 39,691.08 × 16,186.48
  4. Step 4: Simplify right side
    28,761.70x = 642,458,872.60
  5. Step 5: Solve for x
    x = 642,458,872.60/28,761.70
  6. Step 6: Final answer
    x = 22,337.31

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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.