Home / 19,791.20-29,691.34-5,751.48

Finding the Fourth Proportional to 19,791.20, 29,691.34 and 5,751.48

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Solution

The fourth proportional to 19,791.20, 29,691.34 and 5,751.48 is: 8,628.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,791.20 : 29,691.34 = 5,751.48 : x
  2. Step 2: Convert to fraction form
    19,791.20/29,691.34 = 5,751.48/x
  3. Step 3: Cross multiply
    19,791.20x = 29,691.34 × 5,751.48
  4. Step 4: Simplify right side
    19,791.20x = 170,769,148.18
  5. Step 5: Solve for x
    x = 170,769,148.18/19,791.20
  6. Step 6: Final answer
    x = 8,628.54

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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.