Home / 38,108.96-57,142.32-11,806.56

Finding the Fourth Proportional to 38,108.96, 57,142.32 and 11,806.56

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Solution

The fourth proportional to 38,108.96, 57,142.32 and 11,806.56 is: 17,703.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,108.96 : 57,142.32 = 11,806.56 : x
  2. Step 2: Convert to fraction form
    38,108.96/57,142.32 = 11,806.56/x
  3. Step 3: Cross multiply
    38,108.96x = 57,142.32 × 11,806.56
  4. Step 4: Simplify right side
    38,108.96x = 674,654,229.62
  5. Step 5: Solve for x
    x = 674,654,229.62/38,108.96
  6. Step 6: Final answer
    x = 17,703.30

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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.