Home / 20,716.38-28,591.62-11,762.04

Finding the Fourth Proportional to 20,716.38, 28,591.62 and 11,762.04

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Solution

The fourth proportional to 20,716.38, 28,591.62 and 11,762.04 is: 16,233.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716.38 : 28,591.62 = 11,762.04 : x
  2. Step 2: Convert to fraction form
    20,716.38/28,591.62 = 11,762.04/x
  3. Step 3: Cross multiply
    20,716.38x = 28,591.62 × 11,762.04
  4. Step 4: Simplify right side
    20,716.38x = 336,295,778.10
  5. Step 5: Solve for x
    x = 336,295,778.10/20,716.38
  6. Step 6: Final answer
    x = 16,233.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.