Home / 20,122.85-27,770.82-11,625.33

Finding the Fourth Proportional to 20,122.85, 27,770.82 and 11,625.33

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Solution

The fourth proportional to 20,122.85, 27,770.82 and 11,625.33 is: 16,043.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.85 : 27,770.82 = 11,625.33 : x
  2. Step 2: Convert to fraction form
    20,122.85/27,770.82 = 11,625.33/x
  3. Step 3: Cross multiply
    20,122.85x = 27,770.82 × 11,625.33
  4. Step 4: Simplify right side
    20,122.85x = 322,844,946.87
  5. Step 5: Solve for x
    x = 322,844,946.87/20,122.85
  6. Step 6: Final answer
    x = 16,043.70

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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.