Home / 38,140.86-57,213.81-13,183.32

Finding the Fourth Proportional to 38,140.86, 57,213.81 and 13,183.32

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Solution

The fourth proportional to 38,140.86, 57,213.81 and 13,183.32 is: 19,775.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,140.86 : 57,213.81 = 13,183.32 : x
  2. Step 2: Convert to fraction form
    38,140.86/57,213.81 = 13,183.32/x
  3. Step 3: Cross multiply
    38,140.86x = 57,213.81 × 13,183.32
  4. Step 4: Simplify right side
    38,140.86x = 754,267,965.65
  5. Step 5: Solve for x
    x = 754,267,965.65/38,140.86
  6. Step 6: Final answer
    x = 19,775.85

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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.