Home / 20,724.83-28,600.26-11,293.38

Finding the Fourth Proportional to 20,724.83, 28,600.26 and 11,293.38

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Solution

The fourth proportional to 20,724.83, 28,600.26 and 11,293.38 is: 15,584.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,724.83 : 28,600.26 = 11,293.38 : x
  2. Step 2: Convert to fraction form
    20,724.83/28,600.26 = 11,293.38/x
  3. Step 3: Cross multiply
    20,724.83x = 28,600.26 × 11,293.38
  4. Step 4: Simplify right side
    20,724.83x = 322,993,604.28
  5. Step 5: Solve for x
    x = 322,993,604.28/20,724.83
  6. Step 6: Final answer
    x = 15,584.87

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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.