Home / 28,723.62-39,640.42-16,149.18

Finding the Fourth Proportional to 28,723.62, 39,640.42 and 16,149.18

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Solution

The fourth proportional to 28,723.62, 39,640.42 and 16,149.18 is: 22,286.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,723.62 : 39,640.42 = 16,149.18 : x
  2. Step 2: Convert to fraction form
    28,723.62/39,640.42 = 16,149.18/x
  3. Step 3: Cross multiply
    28,723.62x = 39,640.42 × 16,149.18
  4. Step 4: Simplify right side
    28,723.62x = 640,160,277.86
  5. Step 5: Solve for x
    x = 640,160,277.86/28,723.62
  6. Step 6: Final answer
    x = 22,286.89

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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.