Home / 41,940.64-62,949.84-21,178.72

Finding the Fourth Proportional to 41,940.64, 62,949.84 and 21,178.72

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Solution

The fourth proportional to 41,940.64, 62,949.84 and 21,178.72 is: 31,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,940.64 : 62,949.84 = 21,178.72 : x
  2. Step 2: Convert to fraction form
    41,940.64/62,949.84 = 21,178.72/x
  3. Step 3: Cross multiply
    41,940.64x = 62,949.84 × 21,178.72
  4. Step 4: Simplify right side
    41,940.64x = 1,333,197,035.40
  5. Step 5: Solve for x
    x = 1,333,197,035.40/41,940.64
  6. Step 6: Final answer
    x = 31,787.71

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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.