Home / 33,515.09-46,272.49-20,781.80

Finding the Fourth Proportional to 33,515.09, 46,272.49 and 20,781.80

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Solution

The fourth proportional to 33,515.09, 46,272.49 and 20,781.80 is: 28,692.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,515.09 : 46,272.49 = 20,781.80 : x
  2. Step 2: Convert to fraction form
    33,515.09/46,272.49 = 20,781.80/x
  3. Step 3: Cross multiply
    33,515.09x = 46,272.49 × 20,781.80
  4. Step 4: Simplify right side
    33,515.09x = 961,625,349.37
  5. Step 5: Solve for x
    x = 961,625,349.37/33,515.09
  6. Step 6: Final answer
    x = 28,692.31

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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.