Home / 20,974.22-28,944.98-11,414.67

Finding the Fourth Proportional to 20,974.22, 28,944.98 and 11,414.67

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Solution

The fourth proportional to 20,974.22, 28,944.98 and 11,414.67 is: 15,752.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,974.22 : 28,944.98 = 11,414.67 : x
  2. Step 2: Convert to fraction form
    20,974.22/28,944.98 = 11,414.67/x
  3. Step 3: Cross multiply
    20,974.22x = 28,944.98 × 11,414.67
  4. Step 4: Simplify right side
    20,974.22x = 330,397,394.86
  5. Step 5: Solve for x
    x = 330,397,394.86/20,974.22
  6. Step 6: Final answer
    x = 15,752.55

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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.