Home / 20,092.22-30,121.31-12,284.63

Finding the Fourth Proportional to 20,092.22, 30,121.31 and 12,284.63

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Solution

The fourth proportional to 20,092.22, 30,121.31 and 12,284.63 is: 18,416.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,092.22 : 30,121.31 = 12,284.63 : x
  2. Step 2: Convert to fraction form
    20,092.22/30,121.31 = 12,284.63/x
  3. Step 3: Cross multiply
    20,092.22x = 30,121.31 × 12,284.63
  4. Step 4: Simplify right side
    20,092.22x = 370,029,028.57
  5. Step 5: Solve for x
    x = 370,029,028.57/20,092.22
  6. Step 6: Final answer
    x = 18,416.54

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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.