Home / 30,339.20-41,855.82-18,398.18

Finding the Fourth Proportional to 30,339.20, 41,855.82 and 18,398.18

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Solution

The fourth proportional to 30,339.20, 41,855.82 and 18,398.18 is: 25,382.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,339.20 : 41,855.82 = 18,398.18 : x
  2. Step 2: Convert to fraction form
    30,339.20/41,855.82 = 18,398.18/x
  3. Step 3: Cross multiply
    30,339.20x = 41,855.82 × 18,398.18
  4. Step 4: Simplify right side
    30,339.20x = 770,070,910.41
  5. Step 5: Solve for x
    x = 770,070,910.41/30,339.20
  6. Step 6: Final answer
    x = 25,382.04

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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.