Home / 20,072.22-30,105.96-5,282.28

Finding the Fourth Proportional to 20,072.22, 30,105.96 and 5,282.28

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Solution

The fourth proportional to 20,072.22, 30,105.96 and 5,282.28 is: 7,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.22 : 30,105.96 = 5,282.28 : x
  2. Step 2: Convert to fraction form
    20,072.22/30,105.96 = 5,282.28/x
  3. Step 3: Cross multiply
    20,072.22x = 30,105.96 × 5,282.28
  4. Step 4: Simplify right side
    20,072.22x = 159,028,110.39
  5. Step 5: Solve for x
    x = 159,028,110.39/20,072.22
  6. Step 6: Final answer
    x = 7,922.80

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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.