Home / 20,885.48-31,266.66-11,003.48

Finding the Fourth Proportional to 20,885.48, 31,266.66 and 11,003.48

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Solution

The fourth proportional to 20,885.48, 31,266.66 and 11,003.48 is: 16,472.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,885.48 : 31,266.66 = 11,003.48 : x
  2. Step 2: Convert to fraction form
    20,885.48/31,266.66 = 11,003.48/x
  3. Step 3: Cross multiply
    20,885.48x = 31,266.66 × 11,003.48
  4. Step 4: Simplify right side
    20,885.48x = 344,042,067.98
  5. Step 5: Solve for x
    x = 344,042,067.98/20,885.48
  6. Step 6: Final answer
    x = 16,472.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.