Home / 20,749.66-28,634.54-11,796.94

Finding the Fourth Proportional to 20,749.66, 28,634.54 and 11,796.94

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Solution

The fourth proportional to 20,749.66, 28,634.54 and 11,796.94 is: 16,279.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749.66 : 28,634.54 = 11,796.94 : x
  2. Step 2: Convert to fraction form
    20,749.66/28,634.54 = 11,796.94/x
  3. Step 3: Cross multiply
    20,749.66x = 28,634.54 × 11,796.94
  4. Step 4: Simplify right side
    20,749.66x = 337,799,950.31
  5. Step 5: Solve for x
    x = 337,799,950.31/20,749.66
  6. Step 6: Final answer
    x = 16,279.78

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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.