Home / 20,249.44-27,961.40-12,708.34

Finding the Fourth Proportional to 20,249.44, 27,961.40 and 12,708.34

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Solution

The fourth proportional to 20,249.44, 27,961.40 and 12,708.34 is: 17,548.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,249.44 : 27,961.40 = 12,708.34 : x
  2. Step 2: Convert to fraction form
    20,249.44/27,961.40 = 12,708.34/x
  3. Step 3: Cross multiply
    20,249.44x = 27,961.40 × 12,708.34
  4. Step 4: Simplify right side
    20,249.44x = 355,342,978.08
  5. Step 5: Solve for x
    x = 355,342,978.08/20,249.44
  6. Step 6: Final answer
    x = 17,548.29

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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.