Home / 20,626.56-28,464.89-11,195.19

Finding the Fourth Proportional to 20,626.56, 28,464.89 and 11,195.19

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Solution

The fourth proportional to 20,626.56, 28,464.89 and 11,195.19 is: 15,449.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.56 : 28,464.89 = 11,195.19 : x
  2. Step 2: Convert to fraction form
    20,626.56/28,464.89 = 11,195.19/x
  3. Step 3: Cross multiply
    20,626.56x = 28,464.89 × 11,195.19
  4. Step 4: Simplify right side
    20,626.56x = 318,669,795.90
  5. Step 5: Solve for x
    x = 318,669,795.90/20,626.56
  6. Step 6: Final answer
    x = 15,449.49

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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.