Home / 30,617.54-42,251.82-17,188.44

Finding the Fourth Proportional to 30,617.54, 42,251.82 and 17,188.44

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Solution

The fourth proportional to 30,617.54, 42,251.82 and 17,188.44 is: 23,719.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,617.54 : 42,251.82 = 17,188.44 : x
  2. Step 2: Convert to fraction form
    30,617.54/42,251.82 = 17,188.44/x
  3. Step 3: Cross multiply
    30,617.54x = 42,251.82 × 17,188.44
  4. Step 4: Simplify right side
    30,617.54x = 726,242,872.96
  5. Step 5: Solve for x
    x = 726,242,872.96/30,617.54
  6. Step 6: Final answer
    x = 23,719.83

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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.