Home / 19,791.45-29,689.13-5,751.60

Finding the Fourth Proportional to 19,791.45, 29,689.13 and 5,751.60

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Solution

The fourth proportional to 19,791.45, 29,689.13 and 5,751.60 is: 8,627.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,791.45 : 29,689.13 = 5,751.60 : x
  2. Step 2: Convert to fraction form
    19,791.45/29,689.13 = 5,751.60/x
  3. Step 3: Cross multiply
    19,791.45x = 29,689.13 × 5,751.60
  4. Step 4: Simplify right side
    19,791.45x = 170,760,074.33
  5. Step 5: Solve for x
    x = 170,760,074.33/19,791.45
  6. Step 6: Final answer
    x = 8,627.97

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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.