Home / 41,204.89-61,786.86-13,121.28

Finding the Fourth Proportional to 41,204.89, 61,786.86 and 13,121.28

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Solution

The fourth proportional to 41,204.89, 61,786.86 and 13,121.28 is: 19,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,204.89 : 61,786.86 = 13,121.28 : x
  2. Step 2: Convert to fraction form
    41,204.89/61,786.86 = 13,121.28/x
  3. Step 3: Cross multiply
    41,204.89x = 61,786.86 × 13,121.28
  4. Step 4: Simplify right side
    41,204.89x = 810,722,690.38
  5. Step 5: Solve for x
    x = 810,722,690.38/41,204.89
  6. Step 6: Final answer
    x = 19,675.40

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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.