Home / 28,185.57-38,854.49-22,205.34

Finding the Fourth Proportional to 28,185.57, 38,854.49 and 22,205.34

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Solution

The fourth proportional to 28,185.57, 38,854.49 and 22,205.34 is: 30,610.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,185.57 : 38,854.49 = 22,205.34 : x
  2. Step 2: Convert to fraction form
    28,185.57/38,854.49 = 22,205.34/x
  3. Step 3: Cross multiply
    28,185.57x = 38,854.49 × 22,205.34
  4. Step 4: Simplify right side
    28,185.57x = 862,777,049.95
  5. Step 5: Solve for x
    x = 862,777,049.95/28,185.57
  6. Step 6: Final answer
    x = 30,610.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.