Home / 20,198.44-27,887.16-13,031.56

Finding the Fourth Proportional to 20,198.44, 27,887.16 and 13,031.56

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Solution

The fourth proportional to 20,198.44, 27,887.16 and 13,031.56 is: 17,992.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.44 : 27,887.16 = 13,031.56 : x
  2. Step 2: Convert to fraction form
    20,198.44/27,887.16 = 13,031.56/x
  3. Step 3: Cross multiply
    20,198.44x = 27,887.16 × 13,031.56
  4. Step 4: Simplify right side
    20,198.44x = 363,413,198.77
  5. Step 5: Solve for x
    x = 363,413,198.77/20,198.44
  6. Step 6: Final answer
    x = 17,992.14

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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.