Home / 20,114.66-27,758.68-11,161.84

Finding the Fourth Proportional to 20,114.66, 27,758.68 and 11,161.84

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Solution

The fourth proportional to 20,114.66, 27,758.68 and 11,161.84 is: 15,403.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,114.66 : 27,758.68 = 11,161.84 : x
  2. Step 2: Convert to fraction form
    20,114.66/27,758.68 = 11,161.84/x
  3. Step 3: Cross multiply
    20,114.66x = 27,758.68 × 11,161.84
  4. Step 4: Simplify right side
    20,114.66x = 309,837,944.77
  5. Step 5: Solve for x
    x = 309,837,944.77/20,114.66
  6. Step 6: Final answer
    x = 15,403.59

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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.