Home / 38,109.89-57,164.84-15,911.18

Finding the Fourth Proportional to 38,109.89, 57,164.84 and 15,911.18

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Solution

The fourth proportional to 38,109.89, 57,164.84 and 15,911.18 is: 23,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,109.89 : 57,164.84 = 15,911.18 : x
  2. Step 2: Convert to fraction form
    38,109.89/57,164.84 = 15,911.18/x
  3. Step 3: Cross multiply
    38,109.89x = 57,164.84 × 15,911.18
  4. Step 4: Simplify right side
    38,109.89x = 909,560,289.12
  5. Step 5: Solve for x
    x = 909,560,289.12/38,109.89
  6. Step 6: Final answer
    x = 23,866.78

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Similar ratio
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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.