Home / 20,181.67-30,272.57-9,786.13

Finding the Fourth Proportional to 20,181.67, 30,272.57 and 9,786.13

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Solution

The fourth proportional to 20,181.67, 30,272.57 and 9,786.13 is: 14,679.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.67 : 30,272.57 = 9,786.13 : x
  2. Step 2: Convert to fraction form
    20,181.67/30,272.57 = 9,786.13/x
  3. Step 3: Cross multiply
    20,181.67x = 30,272.57 × 9,786.13
  4. Step 4: Simplify right side
    20,181.67x = 296,251,305.45
  5. Step 5: Solve for x
    x = 296,251,305.45/20,181.67
  6. Step 6: Final answer
    x = 14,679.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.