Home / 20,375.73-30,559.10-10,369.85

Finding the Fourth Proportional to 20,375.73, 30,559.10 and 10,369.85

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Solution

The fourth proportional to 20,375.73, 30,559.10 and 10,369.85 is: 15,552.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,375.73 : 30,559.10 = 10,369.85 : x
  2. Step 2: Convert to fraction form
    20,375.73/30,559.10 = 10,369.85/x
  3. Step 3: Cross multiply
    20,375.73x = 30,559.10 × 10,369.85
  4. Step 4: Simplify right side
    20,375.73x = 316,893,078.49
  5. Step 5: Solve for x
    x = 316,893,078.49/20,375.73
  6. Step 6: Final answer
    x = 15,552.48

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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.