Home / 20,021.82-30,035.49-6,872.48

Finding the Fourth Proportional to 20,021.82, 30,035.49 and 6,872.48

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Solution

The fourth proportional to 20,021.82, 30,035.49 and 6,872.48 is: 10,309.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.82 : 30,035.49 = 6,872.48 : x
  2. Step 2: Convert to fraction form
    20,021.82/30,035.49 = 6,872.48/x
  3. Step 3: Cross multiply
    20,021.82x = 30,035.49 × 6,872.48
  4. Step 4: Simplify right side
    20,021.82x = 206,418,304.32
  5. Step 5: Solve for x
    x = 206,418,304.32/20,021.82
  6. Step 6: Final answer
    x = 10,309.67

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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.