Home / 19,181.70-28,734.89-17,091.90

Finding the Fourth Proportional to 19,181.70, 28,734.89 and 17,091.90

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Solution

The fourth proportional to 19,181.70, 28,734.89 and 17,091.90 is: 25,604.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,181.70 : 28,734.89 = 17,091.90 : x
  2. Step 2: Convert to fraction form
    19,181.70/28,734.89 = 17,091.90/x
  3. Step 3: Cross multiply
    19,181.70x = 28,734.89 × 17,091.90
  4. Step 4: Simplify right side
    19,181.70x = 491,133,780.93
  5. Step 5: Solve for x
    x = 491,133,780.93/19,181.70
  6. Step 6: Final answer
    x = 25,604.29

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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.