Home / 30,282.42-41,781.38-18,179.80

Finding the Fourth Proportional to 30,282.42, 41,781.38 and 18,179.80

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Solution

The fourth proportional to 30,282.42, 41,781.38 and 18,179.80 is: 25,083.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,282.42 : 41,781.38 = 18,179.80 : x
  2. Step 2: Convert to fraction form
    30,282.42/41,781.38 = 18,179.80/x
  3. Step 3: Cross multiply
    30,282.42x = 41,781.38 × 18,179.80
  4. Step 4: Simplify right side
    30,282.42x = 759,577,132.12
  5. Step 5: Solve for x
    x = 759,577,132.12/30,282.42
  6. Step 6: Final answer
    x = 25,083.11

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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.