Home / 33,943.85-46,872.26-21,218.78

Finding the Fourth Proportional to 33,943.85, 46,872.26 and 21,218.78

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Solution

The fourth proportional to 33,943.85, 46,872.26 and 21,218.78 is: 29,300.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,943.85 : 46,872.26 = 21,218.78 : x
  2. Step 2: Convert to fraction form
    33,943.85/46,872.26 = 21,218.78/x
  3. Step 3: Cross multiply
    33,943.85x = 46,872.26 × 21,218.78
  4. Step 4: Simplify right side
    33,943.85x = 994,571,991.73
  5. Step 5: Solve for x
    x = 994,571,991.73/33,943.85
  6. Step 6: Final answer
    x = 29,300.51

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1.5x scale

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.