Home / 20,613.94-28,447.24-11,661.25

Finding the Fourth Proportional to 20,613.94, 28,447.24 and 11,661.25

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Solution

The fourth proportional to 20,613.94, 28,447.24 and 11,661.25 is: 16,092.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,613.94 : 28,447.24 = 11,661.25 : x
  2. Step 2: Convert to fraction form
    20,613.94/28,447.24 = 11,661.25/x
  3. Step 3: Cross multiply
    20,613.94x = 28,447.24 × 11,661.25
  4. Step 4: Simplify right side
    20,613.94x = 331,730,377.45
  5. Step 5: Solve for x
    x = 331,730,377.45/20,613.94
  6. Step 6: Final answer
    x = 16,092.53

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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.