Home / 35,286.78-48,678.42-25,711.80

Finding the Fourth Proportional to 35,286.78, 48,678.42 and 25,711.80

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Solution

The fourth proportional to 35,286.78, 48,678.42 and 25,711.80 is: 35,469.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,286.78 : 48,678.42 = 25,711.80 : x
  2. Step 2: Convert to fraction form
    35,286.78/48,678.42 = 25,711.80/x
  3. Step 3: Cross multiply
    35,286.78x = 48,678.42 × 25,711.80
  4. Step 4: Simplify right side
    35,286.78x = 1,251,609,799.36
  5. Step 5: Solve for x
    x = 1,251,609,799.36/35,286.78
  6. Step 6: Final answer
    x = 35,469.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.