Home / 20,408.56-28,183.56-17,587.60

Finding the Fourth Proportional to 20,408.56, 28,183.56 and 17,587.60

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Solution

The fourth proportional to 20,408.56, 28,183.56 and 17,587.60 is: 24,287.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,408.56 : 28,183.56 = 17,587.60 : x
  2. Step 2: Convert to fraction form
    20,408.56/28,183.56 = 17,587.60/x
  3. Step 3: Cross multiply
    20,408.56x = 28,183.56 × 17,587.60
  4. Step 4: Simplify right side
    20,408.56x = 495,681,179.86
  5. Step 5: Solve for x
    x = 495,681,179.86/20,408.56
  6. Step 6: Final answer
    x = 24,287.91

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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.