Home / 20,357.11-28,093.85-11,404.08

Finding the Fourth Proportional to 20,357.11, 28,093.85 and 11,404.08

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Solution

The fourth proportional to 20,357.11, 28,093.85 and 11,404.08 is: 15,738.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357.11 : 28,093.85 = 11,404.08 : x
  2. Step 2: Convert to fraction form
    20,357.11/28,093.85 = 11,404.08/x
  3. Step 3: Cross multiply
    20,357.11x = 28,093.85 × 11,404.08
  4. Step 4: Simplify right side
    20,357.11x = 320,384,512.91
  5. Step 5: Solve for x
    x = 320,384,512.91/20,357.11
  6. Step 6: Final answer
    x = 15,738.21

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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.