Home / 20,396.76-28,147.68-11,444.37

Finding the Fourth Proportional to 20,396.76, 28,147.68 and 11,444.37

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Solution

The fourth proportional to 20,396.76, 28,147.68 and 11,444.37 is: 15,793.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,396.76 : 28,147.68 = 11,444.37 : x
  2. Step 2: Convert to fraction form
    20,396.76/28,147.68 = 11,444.37/x
  3. Step 3: Cross multiply
    20,396.76x = 28,147.68 × 11,444.37
  4. Step 4: Simplify right side
    20,396.76x = 322,132,464.56
  5. Step 5: Solve for x
    x = 322,132,464.56/20,396.76
  6. Step 6: Final answer
    x = 15,793.32

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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.