Home / 27,488.80-41,226.60-7,769.20

Finding the Fourth Proportional to 27,488.80, 41,226.60 and 7,769.20

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Solution

The fourth proportional to 27,488.80, 41,226.60 and 7,769.20 is: 11,651.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,488.80 : 41,226.60 = 7,769.20 : x
  2. Step 2: Convert to fraction form
    27,488.80/41,226.60 = 7,769.20/x
  3. Step 3: Cross multiply
    27,488.80x = 41,226.60 × 7,769.20
  4. Step 4: Simplify right side
    27,488.80x = 320,297,700.72
  5. Step 5: Solve for x
    x = 320,297,700.72/27,488.80
  6. Step 6: Final answer
    x = 11,651.93

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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.