Home / 20,732.56-28,610.96-11,301.12

Finding the Fourth Proportional to 20,732.56, 28,610.96 and 11,301.12

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Solution

The fourth proportional to 20,732.56, 28,610.96 and 11,301.12 is: 15,595.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,732.56 : 28,610.96 = 11,301.12 : x
  2. Step 2: Convert to fraction form
    20,732.56/28,610.96 = 11,301.12/x
  3. Step 3: Cross multiply
    20,732.56x = 28,610.96 × 11,301.12
  4. Step 4: Simplify right side
    20,732.56x = 323,335,892.28
  5. Step 5: Solve for x
    x = 323,335,892.28/20,732.56
  6. Step 6: Final answer
    x = 15,595.56

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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.