Home / 20,226.33-30,338.55-7,081.65

Finding the Fourth Proportional to 20,226.33, 30,338.55 and 7,081.65

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Solution

The fourth proportional to 20,226.33, 30,338.55 and 7,081.65 is: 10,622.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,226.33 : 30,338.55 = 7,081.65 : x
  2. Step 2: Convert to fraction form
    20,226.33/30,338.55 = 7,081.65/x
  3. Step 3: Cross multiply
    20,226.33x = 30,338.55 × 7,081.65
  4. Step 4: Simplify right side
    20,226.33x = 214,846,992.61
  5. Step 5: Solve for x
    x = 214,846,992.61/20,226.33
  6. Step 6: Final answer
    x = 10,622.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.