Home / 30,427.75-41,990.30-17,179.75

Finding the Fourth Proportional to 30,427.75, 41,990.30 and 17,179.75

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Solution

The fourth proportional to 30,427.75, 41,990.30 and 17,179.75 is: 23,708.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,427.75 : 41,990.30 = 17,179.75 : x
  2. Step 2: Convert to fraction form
    30,427.75/41,990.30 = 17,179.75/x
  3. Step 3: Cross multiply
    30,427.75x = 41,990.30 × 17,179.75
  4. Step 4: Simplify right side
    30,427.75x = 721,382,856.43
  5. Step 5: Solve for x
    x = 721,382,856.43/30,427.75
  6. Step 6: Final answer
    x = 23,708.06

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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.