Home / 20,213.92-30,324.36-7,735.04

Finding the Fourth Proportional to 20,213.92, 30,324.36 and 7,735.04

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Solution

The fourth proportional to 20,213.92, 30,324.36 and 7,735.04 is: 11,603.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213.92 : 30,324.36 = 7,735.04 : x
  2. Step 2: Convert to fraction form
    20,213.92/30,324.36 = 7,735.04/x
  3. Step 3: Cross multiply
    20,213.92x = 30,324.36 × 7,735.04
  4. Step 4: Simplify right side
    20,213.92x = 234,560,137.57
  5. Step 5: Solve for x
    x = 234,560,137.57/20,213.92
  6. Step 6: Final answer
    x = 11,603.89

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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.