Home / 20,663.67-30,996.09-5,081.25

Finding the Fourth Proportional to 20,663.67, 30,996.09 and 5,081.25

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Solution

The fourth proportional to 20,663.67, 30,996.09 and 5,081.25 is: 7,622.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,663.67 : 30,996.09 = 5,081.25 : x
  2. Step 2: Convert to fraction form
    20,663.67/30,996.09 = 5,081.25/x
  3. Step 3: Cross multiply
    20,663.67x = 30,996.09 × 5,081.25
  4. Step 4: Simplify right side
    20,663.67x = 157,498,882.31
  5. Step 5: Solve for x
    x = 157,498,882.31/20,663.67
  6. Step 6: Final answer
    x = 7,622.02

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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.