Home / 20,447.10-28,217.79-11,494.44

Finding the Fourth Proportional to 20,447.10, 28,217.79 and 11,494.44

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Solution

The fourth proportional to 20,447.10, 28,217.79 and 11,494.44 is: 15,862.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,447.10 : 28,217.79 = 11,494.44 : x
  2. Step 2: Convert to fraction form
    20,447.10/28,217.79 = 11,494.44/x
  3. Step 3: Cross multiply
    20,447.10x = 28,217.79 × 11,494.44
  4. Step 4: Simplify right side
    20,447.10x = 324,347,694.09
  5. Step 5: Solve for x
    x = 324,347,694.09/20,447.10
  6. Step 6: Final answer
    x = 15,862.77

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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.