Home / 19,991.75-27,591.06-11,608.25

Finding the Fourth Proportional to 19,991.75, 27,591.06 and 11,608.25

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Solution

The fourth proportional to 19,991.75, 27,591.06 and 11,608.25 is: 16,020.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,991.75 : 27,591.06 = 11,608.25 : x
  2. Step 2: Convert to fraction form
    19,991.75/27,591.06 = 11,608.25/x
  3. Step 3: Cross multiply
    19,991.75x = 27,591.06 × 11,608.25
  4. Step 4: Simplify right side
    19,991.75x = 320,283,922.25
  5. Step 5: Solve for x
    x = 320,283,922.25/19,991.75
  6. Step 6: Final answer
    x = 16,020.80

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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.