Home / 20,676.97-28,534.44-11,245.54

Finding the Fourth Proportional to 20,676.97, 28,534.44 and 11,245.54

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Solution

The fourth proportional to 20,676.97, 28,534.44 and 11,245.54 is: 15,518.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,676.97 : 28,534.44 = 11,245.54 : x
  2. Step 2: Convert to fraction form
    20,676.97/28,534.44 = 11,245.54/x
  3. Step 3: Cross multiply
    20,676.97x = 28,534.44 × 11,245.54
  4. Step 4: Simplify right side
    20,676.97x = 320,885,186.40
  5. Step 5: Solve for x
    x = 320,885,186.40/20,676.97
  6. Step 6: Final answer
    x = 15,518.97

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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.