Home / 30,936.11-42,691.98-16,788.96

Finding the Fourth Proportional to 30,936.11, 42,691.98 and 16,788.96

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Solution

The fourth proportional to 30,936.11, 42,691.98 and 16,788.96 is: 23,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,936.11 : 42,691.98 = 16,788.96 : x
  2. Step 2: Convert to fraction form
    30,936.11/42,691.98 = 16,788.96/x
  3. Step 3: Cross multiply
    30,936.11x = 42,691.98 × 16,788.96
  4. Step 4: Simplify right side
    30,936.11x = 716,753,944.54
  5. Step 5: Solve for x
    x = 716,753,944.54/30,936.11
  6. Step 6: Final answer
    x = 23,168.85

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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.