Home / 20,115.67-30,173.51-6,265.75

Finding the Fourth Proportional to 20,115.67, 30,173.51 and 6,265.75

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Solution

The fourth proportional to 20,115.67, 30,173.51 and 6,265.75 is: 9,398.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,115.67 : 30,173.51 = 6,265.75 : x
  2. Step 2: Convert to fraction form
    20,115.67/30,173.51 = 6,265.75/x
  3. Step 3: Cross multiply
    20,115.67x = 30,173.51 × 6,265.75
  4. Step 4: Simplify right side
    20,115.67x = 189,059,670.28
  5. Step 5: Solve for x
    x = 189,059,670.28/20,115.67
  6. Step 6: Final answer
    x = 9,398.63

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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.