Home / 19,627.20-29,315.97-16,861.86

Finding the Fourth Proportional to 19,627.20, 29,315.97 and 16,861.86

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Solution

The fourth proportional to 19,627.20, 29,315.97 and 16,861.86 is: 25,185.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,627.20 : 29,315.97 = 16,861.86 : x
  2. Step 2: Convert to fraction form
    19,627.20/29,315.97 = 16,861.86/x
  3. Step 3: Cross multiply
    19,627.20x = 29,315.97 × 16,861.86
  4. Step 4: Simplify right side
    19,627.20x = 494,321,781.90
  5. Step 5: Solve for x
    x = 494,321,781.90/19,627.20
  6. Step 6: Final answer
    x = 25,185.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.