Home / 20,074.72-30,083.22-11,291.08

Finding the Fourth Proportional to 20,074.72, 30,083.22 and 11,291.08

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Solution

The fourth proportional to 20,074.72, 30,083.22 and 11,291.08 is: 16,920.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,074.72 : 30,083.22 = 11,291.08 : x
  2. Step 2: Convert to fraction form
    20,074.72/30,083.22 = 11,291.08/x
  3. Step 3: Cross multiply
    20,074.72x = 30,083.22 × 11,291.08
  4. Step 4: Simplify right side
    20,074.72x = 339,672,043.68
  5. Step 5: Solve for x
    x = 339,672,043.68/20,074.72
  6. Step 6: Final answer
    x = 16,920.39

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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.