Home / 30,936.13-42,691.88-16,788.97

Finding the Fourth Proportional to 30,936.13, 42,691.88 and 16,788.97

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Solution

The fourth proportional to 30,936.13, 42,691.88 and 16,788.97 is: 23,168.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,936.13 : 42,691.88 = 16,788.97 : x
  2. Step 2: Convert to fraction form
    30,936.13/42,691.88 = 16,788.97/x
  3. Step 3: Cross multiply
    30,936.13x = 42,691.88 × 16,788.97
  4. Step 4: Simplify right side
    30,936.13x = 716,752,692.56
  5. Step 5: Solve for x
    x = 716,752,692.56/30,936.13
  6. Step 6: Final answer
    x = 23,168.79

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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.