Home / 33,158.97-45,745.82-20,408.30

Finding the Fourth Proportional to 33,158.97, 45,745.82 and 20,408.30

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Solution

The fourth proportional to 33,158.97, 45,745.82 and 20,408.30 is: 28,155.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,158.97 : 45,745.82 = 20,408.30 : x
  2. Step 2: Convert to fraction form
    33,158.97/45,745.82 = 20,408.30/x
  3. Step 3: Cross multiply
    33,158.97x = 45,745.82 × 20,408.30
  4. Step 4: Simplify right side
    33,158.97x = 933,594,418.31
  5. Step 5: Solve for x
    x = 933,594,418.31/33,158.97
  6. Step 6: Final answer
    x = 28,155.11

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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.