Home / 38,581.78-57,872.81-13,608.26

Finding the Fourth Proportional to 38,581.78, 57,872.81 and 13,608.26

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Solution

The fourth proportional to 38,581.78, 57,872.81 and 13,608.26 is: 20,412.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,581.78 : 57,872.81 = 13,608.26 : x
  2. Step 2: Convert to fraction form
    38,581.78/57,872.81 = 13,608.26/x
  3. Step 3: Cross multiply
    38,581.78x = 57,872.81 × 13,608.26
  4. Step 4: Simplify right side
    38,581.78x = 787,548,245.41
  5. Step 5: Solve for x
    x = 787,548,245.41/38,581.78
  6. Step 6: Final answer
    x = 20,412.44

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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.