Home / 20,396.12-30,568.26-11,151.32

Finding the Fourth Proportional to 20,396.12, 30,568.26 and 11,151.32

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Solution

The fourth proportional to 20,396.12, 30,568.26 and 11,151.32 is: 16,712.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396.12 : 30,568.26 = 11,151.32 : x
  2. Step 2: Convert to fraction form
    20,396.12/30,568.26 = 11,151.32/x
  3. Step 3: Cross multiply
    20,396.12x = 30,568.26 × 11,151.32
  4. Step 4: Simplify right side
    20,396.12x = 340,876,449.10
  5. Step 5: Solve for x
    x = 340,876,449.10/20,396.12
  6. Step 6: Final answer
    x = 16,712.81

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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.