Home / 13,795.89-20,690.19-3,935.73

Finding the Fourth Proportional to 13,795.89, 20,690.19 and 3,935.73

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Solution

The fourth proportional to 13,795.89, 20,690.19 and 3,935.73 is: 5,902.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.89 : 20,690.19 = 3,935.73 : x
  2. Step 2: Convert to fraction form
    13,795.89/20,690.19 = 3,935.73/x
  3. Step 3: Cross multiply
    13,795.89x = 20,690.19 × 3,935.73
  4. Step 4: Simplify right side
    13,795.89x = 81,431,001.49
  5. Step 5: Solve for x
    x = 81,431,001.49/13,795.89
  6. Step 6: Final answer
    x = 5,902.56

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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.