Home / 20,416.62-28,174.83-11,464.50

Finding the Fourth Proportional to 20,416.62, 28,174.83 and 11,464.50

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Solution

The fourth proportional to 20,416.62, 28,174.83 and 11,464.50 is: 15,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,416.62 : 28,174.83 = 11,464.50 : x
  2. Step 2: Convert to fraction form
    20,416.62/28,174.83 = 11,464.50/x
  3. Step 3: Cross multiply
    20,416.62x = 28,174.83 × 11,464.50
  4. Step 4: Simplify right side
    20,416.62x = 323,010,338.54
  5. Step 5: Solve for x
    x = 323,010,338.54/20,416.62
  6. Step 6: Final answer
    x = 15,820.95

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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.