Home / 20,626.70-28,464.82-11,195.26

Finding the Fourth Proportional to 20,626.70, 28,464.82 and 11,195.26

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Solution

The fourth proportional to 20,626.70, 28,464.82 and 11,195.26 is: 15,449.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.70 : 28,464.82 = 11,195.26 : x
  2. Step 2: Convert to fraction form
    20,626.70/28,464.82 = 11,195.26/x
  3. Step 3: Cross multiply
    20,626.70x = 28,464.82 × 11,195.26
  4. Step 4: Simplify right side
    20,626.70x = 318,670,961.60
  5. Step 5: Solve for x
    x = 318,670,961.60/20,626.70
  6. Step 6: Final answer
    x = 15,449.44

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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.