Home / 20,620.14-30,930.22-7,468.18

Finding the Fourth Proportional to 20,620.14, 30,930.22 and 7,468.18

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Solution

The fourth proportional to 20,620.14, 30,930.22 and 7,468.18 is: 11,202.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,620.14 : 30,930.22 = 7,468.18 : x
  2. Step 2: Convert to fraction form
    20,620.14/30,930.22 = 7,468.18/x
  3. Step 3: Cross multiply
    20,620.14x = 30,930.22 × 7,468.18
  4. Step 4: Simplify right side
    20,620.14x = 230,992,450.40
  5. Step 5: Solve for x
    x = 230,992,450.40/20,620.14
  6. Step 6: Final answer
    x = 11,202.27

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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.