Home / 20,117.20-30,175.62-6,077.20

Finding the Fourth Proportional to 20,117.20, 30,175.62 and 6,077.20

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Solution

The fourth proportional to 20,117.20, 30,175.62 and 6,077.20 is: 9,115.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.20 : 30,175.62 = 6,077.20 : x
  2. Step 2: Convert to fraction form
    20,117.20/30,175.62 = 6,077.20/x
  3. Step 3: Cross multiply
    20,117.20x = 30,175.62 × 6,077.20
  4. Step 4: Simplify right side
    20,117.20x = 183,383,277.86
  5. Step 5: Solve for x
    x = 183,383,277.86/20,117.20
  6. Step 6: Final answer
    x = 9,115.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.