Home / 18,760.33-28,138.32-4,910.41

Finding the Fourth Proportional to 18,760.33, 28,138.32 and 4,910.41

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Solution

The fourth proportional to 18,760.33, 28,138.32 and 4,910.41 is: 7,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,760.33 : 28,138.32 = 4,910.41 : x
  2. Step 2: Convert to fraction form
    18,760.33/28,138.32 = 4,910.41/x
  3. Step 3: Cross multiply
    18,760.33x = 28,138.32 × 4,910.41
  4. Step 4: Simplify right side
    18,760.33x = 138,170,687.91
  5. Step 5: Solve for x
    x = 138,170,687.91/18,760.33
  6. Step 6: Final answer
    x = 7,365.05

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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.