Home / 20,452.94-28,224.42-11,500.82

Finding the Fourth Proportional to 20,452.94, 28,224.42 and 11,500.82

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Solution

The fourth proportional to 20,452.94, 28,224.42 and 11,500.82 is: 15,870.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.94 : 28,224.42 = 11,500.82 : x
  2. Step 2: Convert to fraction form
    20,452.94/28,224.42 = 11,500.82/x
  3. Step 3: Cross multiply
    20,452.94x = 28,224.42 × 11,500.82
  4. Step 4: Simplify right side
    20,452.94x = 324,603,974.02
  5. Step 5: Solve for x
    x = 324,603,974.02/20,452.94
  6. Step 6: Final answer
    x = 15,870.77

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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.