Home / 20,626.75-28,465.44-11,195.29

Finding the Fourth Proportional to 20,626.75, 28,465.44 and 11,195.29

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Solution

The fourth proportional to 20,626.75, 28,465.44 and 11,195.29 is: 15,449.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.75 : 28,465.44 = 11,195.29 : x
  2. Step 2: Convert to fraction form
    20,626.75/28,465.44 = 11,195.29/x
  3. Step 3: Cross multiply
    20,626.75x = 28,465.44 × 11,195.29
  4. Step 4: Simplify right side
    20,626.75x = 318,678,855.78
  5. Step 5: Solve for x
    x = 318,678,855.78/20,626.75
  6. Step 6: Final answer
    x = 15,449.79

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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.