Home / 20,452.94-28,218.27-16,669.61

Finding the Fourth Proportional to 20,452.94, 28,218.27 and 16,669.61

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Solution

The fourth proportional to 20,452.94, 28,218.27 and 16,669.61 is: 22,998.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.94 : 28,218.27 = 16,669.61 : x
  2. Step 2: Convert to fraction form
    20,452.94/28,218.27 = 16,669.61/x
  3. Step 3: Cross multiply
    20,452.94x = 28,218.27 × 16,669.61
  4. Step 4: Simplify right side
    20,452.94x = 470,387,414.68
  5. Step 5: Solve for x
    x = 470,387,414.68/20,452.94
  6. Step 6: Final answer
    x = 22,998.53

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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.