Home / 27,399.87-41,102.24-7,678.67

Finding the Fourth Proportional to 27,399.87, 41,102.24 and 7,678.67

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Solution

The fourth proportional to 27,399.87, 41,102.24 and 7,678.67 is: 11,518.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,399.87 : 41,102.24 = 7,678.67 : x
  2. Step 2: Convert to fraction form
    27,399.87/41,102.24 = 7,678.67/x
  3. Step 3: Cross multiply
    27,399.87x = 41,102.24 × 7,678.67
  4. Step 4: Simplify right side
    27,399.87x = 315,610,293.32
  5. Step 5: Solve for x
    x = 315,610,293.32/27,399.87
  6. Step 6: Final answer
    x = 11,518.68

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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.