Home / 20,272.60-27,971.24-11,887.48

Finding the Fourth Proportional to 20,272.60, 27,971.24 and 11,887.48

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Solution

The fourth proportional to 20,272.60, 27,971.24 and 11,887.48 is: 16,401.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,272.60 : 27,971.24 = 11,887.48 : x
  2. Step 2: Convert to fraction form
    20,272.60/27,971.24 = 11,887.48/x
  3. Step 3: Cross multiply
    20,272.60x = 27,971.24 × 11,887.48
  4. Step 4: Simplify right side
    20,272.60x = 332,507,556.08
  5. Step 5: Solve for x
    x = 332,507,556.08/20,272.60
  6. Step 6: Final answer
    x = 16,401.82

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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.