Home / 20,093.68-27,722.64-12,132.88

Finding the Fourth Proportional to 20,093.68, 27,722.64 and 12,132.88

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Solution

The fourth proportional to 20,093.68, 27,722.64 and 12,132.88 is: 16,739.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,093.68 : 27,722.64 = 12,132.88 : x
  2. Step 2: Convert to fraction form
    20,093.68/27,722.64 = 12,132.88/x
  3. Step 3: Cross multiply
    20,093.68x = 27,722.64 × 12,132.88
  4. Step 4: Simplify right side
    20,093.68x = 336,355,464.40
  5. Step 5: Solve for x
    x = 336,355,464.40/20,093.68
  6. Step 6: Final answer
    x = 16,739.37

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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.