Home / 26,183.40-39,209.49-20,666.70

Finding the Fourth Proportional to 26,183.40, 39,209.49 and 20,666.70

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Solution

The fourth proportional to 26,183.40, 39,209.49 and 20,666.70 is: 30,948.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,183.40 : 39,209.49 = 20,666.70 : x
  2. Step 2: Convert to fraction form
    26,183.40/39,209.49 = 20,666.70/x
  3. Step 3: Cross multiply
    26,183.40x = 39,209.49 × 20,666.70
  4. Step 4: Simplify right side
    26,183.40x = 810,330,766.98
  5. Step 5: Solve for x
    x = 810,330,766.98/26,183.40
  6. Step 6: Final answer
    x = 30,948.26

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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.