Home / 49,938.84-74,843.64-20,322

Finding the Fourth Proportional to 49,938.84, 74,843.64 and 20,322

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Solution

The fourth proportional to 49,938.84, 74,843.64 and 20,322 is: 30,456.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,938.84 : 74,843.64 = 20,322 : x
  2. Step 2: Convert to fraction form
    49,938.84/74,843.64 = 20,322/x
  3. Step 3: Cross multiply
    49,938.84x = 74,843.64 × 20,322
  4. Step 4: Simplify right side
    49,938.84x = 1,520,972,452.08
  5. Step 5: Solve for x
    x = 1,520,972,452.08/49,938.84
  6. Step 6: Final answer
    x = 30,456.70

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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.