Home / 40,240.62-60,392.82-21,278.72

Finding the Fourth Proportional to 40,240.62, 60,392.82 and 21,278.72

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Solution

The fourth proportional to 40,240.62, 60,392.82 and 21,278.72 is: 31,934.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,240.62 : 60,392.82 = 21,278.72 : x
  2. Step 2: Convert to fraction form
    40,240.62/60,392.82 = 21,278.72/x
  3. Step 3: Cross multiply
    40,240.62x = 60,392.82 × 21,278.72
  4. Step 4: Simplify right side
    40,240.62x = 1,285,081,604.83
  5. Step 5: Solve for x
    x = 1,285,081,604.83/40,240.62
  6. Step 6: Final answer
    x = 31,934.94

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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.