Home / 20,832.06-28,741.08-11,873.10

Finding the Fourth Proportional to 20,832.06, 28,741.08 and 11,873.10

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Solution

The fourth proportional to 20,832.06, 28,741.08 and 11,873.10 is: 16,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,832.06 : 28,741.08 = 11,873.10 : x
  2. Step 2: Convert to fraction form
    20,832.06/28,741.08 = 11,873.10/x
  3. Step 3: Cross multiply
    20,832.06x = 28,741.08 × 11,873.10
  4. Step 4: Simplify right side
    20,832.06x = 341,245,716.95
  5. Step 5: Solve for x
    x = 341,245,716.95/20,832.06
  6. Step 6: Final answer
    x = 16,380.80

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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.