Home / 20,414.27-28,169.51-11,462.75

Finding the Fourth Proportional to 20,414.27, 28,169.51 and 11,462.75

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Solution

The fourth proportional to 20,414.27, 28,169.51 and 11,462.75 is: 15,817.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,414.27 : 28,169.51 = 11,462.75 : x
  2. Step 2: Convert to fraction form
    20,414.27/28,169.51 = 11,462.75/x
  3. Step 3: Cross multiply
    20,414.27x = 28,169.51 × 11,462.75
  4. Step 4: Simplify right side
    20,414.27x = 322,899,993.44
  5. Step 5: Solve for x
    x = 322,899,993.44/20,414.27
  6. Step 6: Final answer
    x = 15,817.37

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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.