Home / 20,285.67-27,993.22-11,331.39

Finding the Fourth Proportional to 20,285.67, 27,993.22 and 11,331.39

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Solution

The fourth proportional to 20,285.67, 27,993.22 and 11,331.39 is: 15,636.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,285.67 : 27,993.22 = 11,331.39 : x
  2. Step 2: Convert to fraction form
    20,285.67/27,993.22 = 11,331.39/x
  3. Step 3: Cross multiply
    20,285.67x = 27,993.22 × 11,331.39
  4. Step 4: Simplify right side
    20,285.67x = 317,202,093.18
  5. Step 5: Solve for x
    x = 317,202,093.18/20,285.67
  6. Step 6: Final answer
    x = 15,636.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.