Home / 20,648.05-30,974.13-6,604.55

Finding the Fourth Proportional to 20,648.05, 30,974.13 and 6,604.55

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Solution

The fourth proportional to 20,648.05, 30,974.13 and 6,604.55 is: 9,907.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648.05 : 30,974.13 = 6,604.55 : x
  2. Step 2: Convert to fraction form
    20,648.05/30,974.13 = 6,604.55/x
  3. Step 3: Cross multiply
    20,648.05x = 30,974.13 × 6,604.55
  4. Step 4: Simplify right side
    20,648.05x = 204,570,157.27
  5. Step 5: Solve for x
    x = 204,570,157.27/20,648.05
  6. Step 6: Final answer
    x = 9,907.48

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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.