Home / 20,222.69-30,335.57-6,891.54

Finding the Fourth Proportional to 20,222.69, 30,335.57 and 6,891.54

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Solution

The fourth proportional to 20,222.69, 30,335.57 and 6,891.54 is: 10,337.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,222.69 : 30,335.57 = 6,891.54 : x
  2. Step 2: Convert to fraction form
    20,222.69/30,335.57 = 6,891.54/x
  3. Step 3: Cross multiply
    20,222.69x = 30,335.57 × 6,891.54
  4. Step 4: Simplify right side
    20,222.69x = 209,058,683.78
  5. Step 5: Solve for x
    x = 209,058,683.78/20,222.69
  6. Step 6: Final answer
    x = 10,337.83

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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.