Home / 19,863.86-29,795.37-5,072.45

Finding the Fourth Proportional to 19,863.86, 29,795.37 and 5,072.45

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Solution

The fourth proportional to 19,863.86, 29,795.37 and 5,072.45 is: 7,608.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,863.86 : 29,795.37 = 5,072.45 : x
  2. Step 2: Convert to fraction form
    19,863.86/29,795.37 = 5,072.45/x
  3. Step 3: Cross multiply
    19,863.86x = 29,795.37 × 5,072.45
  4. Step 4: Simplify right side
    19,863.86x = 151,135,375.58
  5. Step 5: Solve for x
    x = 151,135,375.58/19,863.86
  6. Step 6: Final answer
    x = 7,608.56

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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.