Home / 28,748.97-39,672.60-16,171.29

Finding the Fourth Proportional to 28,748.97, 39,672.60 and 16,171.29

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Solution

The fourth proportional to 28,748.97, 39,672.60 and 16,171.29 is: 22,315.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,748.97 : 39,672.60 = 16,171.29 : x
  2. Step 2: Convert to fraction form
    28,748.97/39,672.60 = 16,171.29/x
  3. Step 3: Cross multiply
    28,748.97x = 39,672.60 × 16,171.29
  4. Step 4: Simplify right side
    28,748.97x = 641,556,840.43
  5. Step 5: Solve for x
    x = 641,556,840.43/28,748.97
  6. Step 6: Final answer
    x = 22,315.82

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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.