Home / 20,245.49-27,938.69-11,292.98

Finding the Fourth Proportional to 20,245.49, 27,938.69 and 11,292.98

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Solution

The fourth proportional to 20,245.49, 27,938.69 and 11,292.98 is: 15,584.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,245.49 : 27,938.69 = 11,292.98 : x
  2. Step 2: Convert to fraction form
    20,245.49/27,938.69 = 11,292.98/x
  3. Step 3: Cross multiply
    20,245.49x = 27,938.69 × 11,292.98
  4. Step 4: Simplify right side
    20,245.49x = 315,511,067.40
  5. Step 5: Solve for x
    x = 315,511,067.40/20,245.49
  6. Step 6: Final answer
    x = 15,584.26

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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.