Home / 20,021.67-30,043.17-11,257.20

Finding the Fourth Proportional to 20,021.67, 30,043.17 and 11,257.20

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Solution

The fourth proportional to 20,021.67, 30,043.17 and 11,257.20 is: 16,891.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,021.67 : 30,043.17 = 11,257.20 : x
  2. Step 2: Convert to fraction form
    20,021.67/30,043.17 = 11,257.20/x
  3. Step 3: Cross multiply
    20,021.67x = 30,043.17 × 11,257.20
  4. Step 4: Simplify right side
    20,021.67x = 338,201,973.32
  5. Step 5: Solve for x
    x = 338,201,973.32/20,021.67
  6. Step 6: Final answer
    x = 16,891.80

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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.