Home / 20,626.82-28,460.13-11,674.32

Finding the Fourth Proportional to 20,626.82, 28,460.13 and 11,674.32

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Solution

The fourth proportional to 20,626.82, 28,460.13 and 11,674.32 is: 16,107.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.82 : 28,460.13 = 11,674.32 : x
  2. Step 2: Convert to fraction form
    20,626.82/28,460.13 = 11,674.32/x
  3. Step 3: Cross multiply
    20,626.82x = 28,460.13 × 11,674.32
  4. Step 4: Simplify right side
    20,626.82x = 332,252,736.01
  5. Step 5: Solve for x
    x = 332,252,736.01/20,626.82
  6. Step 6: Final answer
    x = 16,107.80

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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.