Home / 20,106.23-30,149.62-11,788.94

Finding the Fourth Proportional to 20,106.23, 30,149.62 and 11,788.94

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Solution

The fourth proportional to 20,106.23, 30,149.62 and 11,788.94 is: 17,677.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.23 : 30,149.62 = 11,788.94 : x
  2. Step 2: Convert to fraction form
    20,106.23/30,149.62 = 11,788.94/x
  3. Step 3: Cross multiply
    20,106.23x = 30,149.62 × 11,788.94
  4. Step 4: Simplify right side
    20,106.23x = 355,432,107.10
  5. Step 5: Solve for x
    x = 355,432,107.10/20,106.23
  6. Step 6: Final answer
    x = 17,677.71

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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.