Home / 20,883.62-31,324.83-7,735.70

Finding the Fourth Proportional to 20,883.62, 31,324.83 and 7,735.70

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Solution

The fourth proportional to 20,883.62, 31,324.83 and 7,735.70 is: 11,603.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.62 : 31,324.83 = 7,735.70 : x
  2. Step 2: Convert to fraction form
    20,883.62/31,324.83 = 7,735.70/x
  3. Step 3: Cross multiply
    20,883.62x = 31,324.83 × 7,735.70
  4. Step 4: Simplify right side
    20,883.62x = 242,319,487.43
  5. Step 5: Solve for x
    x = 242,319,487.43/20,883.62
  6. Step 6: Final answer
    x = 11,603.33

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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.