Home / 13,754.48-20,629.42-3,891.31

Finding the Fourth Proportional to 13,754.48, 20,629.42 and 3,891.31

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Solution

The fourth proportional to 13,754.48, 20,629.42 and 3,891.31 is: 5,836.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,754.48 : 20,629.42 = 3,891.31 : x
  2. Step 2: Convert to fraction form
    13,754.48/20,629.42 = 3,891.31/x
  3. Step 3: Cross multiply
    13,754.48x = 20,629.42 × 3,891.31
  4. Step 4: Simplify right side
    13,754.48x = 80,275,407.04
  5. Step 5: Solve for x
    x = 80,275,407.04/13,754.48
  6. Step 6: Final answer
    x = 5,836.31

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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.