Home / 20,741.44-28,623.12-11,310.01

Finding the Fourth Proportional to 20,741.44, 28,623.12 and 11,310.01

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Solution

The fourth proportional to 20,741.44, 28,623.12 and 11,310.01 is: 15,607.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,741.44 : 28,623.12 = 11,310.01 : x
  2. Step 2: Convert to fraction form
    20,741.44/28,623.12 = 11,310.01/x
  3. Step 3: Cross multiply
    20,741.44x = 28,623.12 × 11,310.01
  4. Step 4: Simplify right side
    20,741.44x = 323,727,773.43
  5. Step 5: Solve for x
    x = 323,727,773.43/20,741.44
  6. Step 6: Final answer
    x = 15,607.78

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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.