Home / 38,115.72-57,164.36-15,917.04

Finding the Fourth Proportional to 38,115.72, 57,164.36 and 15,917.04

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Solution

The fourth proportional to 38,115.72, 57,164.36 and 15,917.04 is: 23,871.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,115.72 : 57,164.36 = 15,917.04 : x
  2. Step 2: Convert to fraction form
    38,115.72/57,164.36 = 15,917.04/x
  3. Step 3: Cross multiply
    38,115.72x = 57,164.36 × 15,917.04
  4. Step 4: Simplify right side
    38,115.72x = 909,887,325.11
  5. Step 5: Solve for x
    x = 909,887,325.11/38,115.72
  6. Step 6: Final answer
    x = 23,871.71

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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.