Home / 30,992.82-42,770.38-16,845.70

Finding the Fourth Proportional to 30,992.82, 42,770.38 and 16,845.70

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Solution

The fourth proportional to 30,992.82, 42,770.38 and 16,845.70 is: 23,247.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,992.82 : 42,770.38 = 16,845.70 : x
  2. Step 2: Convert to fraction form
    30,992.82/42,770.38 = 16,845.70/x
  3. Step 3: Cross multiply
    30,992.82x = 42,770.38 × 16,845.70
  4. Step 4: Simplify right side
    30,992.82x = 720,496,841.33
  5. Step 5: Solve for x
    x = 720,496,841.33/30,992.82
  6. Step 6: Final answer
    x = 23,247.22

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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.