Home / 20,107.29-27,749.31-11,610.99

Finding the Fourth Proportional to 20,107.29, 27,749.31 and 11,610.99

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Solution

The fourth proportional to 20,107.29, 27,749.31 and 11,610.99 is: 16,023.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.29 : 27,749.31 = 11,610.99 : x
  2. Step 2: Convert to fraction form
    20,107.29/27,749.31 = 11,610.99/x
  3. Step 3: Cross multiply
    20,107.29x = 27,749.31 × 11,610.99
  4. Step 4: Simplify right side
    20,107.29x = 322,196,960.92
  5. Step 5: Solve for x
    x = 322,196,960.92/20,107.29
  6. Step 6: Final answer
    x = 16,023.89

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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.