Home / 20,626.92-28,465.14-11,195.47

Finding the Fourth Proportional to 20,626.92, 28,465.14 and 11,195.47

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Solution

The fourth proportional to 20,626.92, 28,465.14 and 11,195.47 is: 15,449.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.92 : 28,465.14 = 11,195.47 : x
  2. Step 2: Convert to fraction form
    20,626.92/28,465.14 = 11,195.47/x
  3. Step 3: Cross multiply
    20,626.92x = 28,465.14 × 11,195.47
  4. Step 4: Simplify right side
    20,626.92x = 318,680,620.92
  5. Step 5: Solve for x
    x = 318,680,620.92/20,626.92
  6. Step 6: Final answer
    x = 15,449.74

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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.