Home / 20,626.59-28,464.73-11,195.16

Finding the Fourth Proportional to 20,626.59, 28,464.73 and 11,195.16

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Solution

The fourth proportional to 20,626.59, 28,464.73 and 11,195.16 is: 15,449.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.59 : 28,464.73 = 11,195.16 : x
  2. Step 2: Convert to fraction form
    20,626.59/28,464.73 = 11,195.16/x
  3. Step 3: Cross multiply
    20,626.59x = 28,464.73 × 11,195.16
  4. Step 4: Simplify right side
    20,626.59x = 318,667,008.41
  5. Step 5: Solve for x
    x = 318,667,008.41/20,626.59
  6. Step 6: Final answer
    x = 15,449.33

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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.