Home / 38,081.75-57,128.69-11,786.41

Finding the Fourth Proportional to 38,081.75, 57,128.69 and 11,786.41

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Solution

The fourth proportional to 38,081.75, 57,128.69 and 11,786.41 is: 17,681.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,081.75 : 57,128.69 = 11,786.41 : x
  2. Step 2: Convert to fraction form
    38,081.75/57,128.69 = 11,786.41/x
  3. Step 3: Cross multiply
    38,081.75x = 57,128.69 × 11,786.41
  4. Step 4: Simplify right side
    38,081.75x = 673,342,263.98
  5. Step 5: Solve for x
    x = 673,342,263.98/38,081.75
  6. Step 6: Final answer
    x = 17,681.50

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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.