Home / 20,055.47-27,676.95-11,997.43

Finding the Fourth Proportional to 20,055.47, 27,676.95 and 11,997.43

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Solution

The fourth proportional to 20,055.47, 27,676.95 and 11,997.43 is: 16,556.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.47 : 27,676.95 = 11,997.43 : x
  2. Step 2: Convert to fraction form
    20,055.47/27,676.95 = 11,997.43/x
  3. Step 3: Cross multiply
    20,055.47x = 27,676.95 × 11,997.43
  4. Step 4: Simplify right side
    20,055.47x = 332,052,379.22
  5. Step 5: Solve for x
    x = 332,052,379.22/20,055.47
  6. Step 6: Final answer
    x = 16,556.70

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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.