Home / 33,655.97-46,453.16-20,918.78

Finding the Fourth Proportional to 33,655.97, 46,453.16 and 20,918.78

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Solution

The fourth proportional to 33,655.97, 46,453.16 and 20,918.78 is: 28,872.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,655.97 : 46,453.16 = 20,918.78 : x
  2. Step 2: Convert to fraction form
    33,655.97/46,453.16 = 20,918.78/x
  3. Step 3: Cross multiply
    33,655.97x = 46,453.16 × 20,918.78
  4. Step 4: Simplify right side
    33,655.97x = 971,743,180.26
  5. Step 5: Solve for x
    x = 971,743,180.26/33,655.97
  6. Step 6: Final answer
    x = 28,872.83

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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.