Home / 38,136.67-57,205.56-11,839.75

Finding the Fourth Proportional to 38,136.67, 57,205.56 and 11,839.75

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Solution

The fourth proportional to 38,136.67, 57,205.56 and 11,839.75 is: 17,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,136.67 : 57,205.56 = 11,839.75 : x
  2. Step 2: Convert to fraction form
    38,136.67/57,205.56 = 11,839.75/x
  3. Step 3: Cross multiply
    38,136.67x = 57,205.56 × 11,839.75
  4. Step 4: Simplify right side
    38,136.67x = 677,299,529.01
  5. Step 5: Solve for x
    x = 677,299,529.01/38,136.67
  6. Step 6: Final answer
    x = 17,759.80

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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.