Home / 33,331.97-45,975.57-21,409.78

Finding the Fourth Proportional to 33,331.97, 45,975.57 and 21,409.78

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Solution

The fourth proportional to 33,331.97, 45,975.57 and 21,409.78 is: 29,531.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,331.97 : 45,975.57 = 21,409.78 : x
  2. Step 2: Convert to fraction form
    33,331.97/45,975.57 = 21,409.78/x
  3. Step 3: Cross multiply
    33,331.97x = 45,975.57 × 21,409.78
  4. Step 4: Simplify right side
    33,331.97x = 984,326,839.07
  5. Step 5: Solve for x
    x = 984,326,839.07/33,331.97
  6. Step 6: Final answer
    x = 29,531.01

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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.