Home / 20,694.75-31,049.43-8,843.49

Finding the Fourth Proportional to 20,694.75, 31,049.43 and 8,843.49

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Solution

The fourth proportional to 20,694.75, 31,049.43 and 8,843.49 is: 13,268.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.75 : 31,049.43 = 8,843.49 : x
  2. Step 2: Convert to fraction form
    20,694.75/31,049.43 = 8,843.49/x
  3. Step 3: Cross multiply
    20,694.75x = 31,049.43 × 8,843.49
  4. Step 4: Simplify right side
    20,694.75x = 274,585,323.71
  5. Step 5: Solve for x
    x = 274,585,323.71/20,694.75
  6. Step 6: Final answer
    x = 13,268.36

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1.5x scale

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.