Home / 20,107.28-27,749.32-11,610.98

Finding the Fourth Proportional to 20,107.28, 27,749.32 and 11,610.98

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Solution

The fourth proportional to 20,107.28, 27,749.32 and 11,610.98 is: 16,023.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,107.28 : 27,749.32 = 11,610.98 : x
  2. Step 2: Convert to fraction form
    20,107.28/27,749.32 = 11,610.98/x
  3. Step 3: Cross multiply
    20,107.28x = 27,749.32 × 11,610.98
  4. Step 4: Simplify right side
    20,107.28x = 322,196,799.53
  5. Step 5: Solve for x
    x = 322,196,799.53/20,107.28
  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.