Home / 20,961.50-31,433.03-11,098.48

Finding the Fourth Proportional to 20,961.50, 31,433.03 and 11,098.48

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Solution

The fourth proportional to 20,961.50, 31,433.03 and 11,098.48 is: 16,642.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,961.50 : 31,433.03 = 11,098.48 : x
  2. Step 2: Convert to fraction form
    20,961.50/31,433.03 = 11,098.48/x
  3. Step 3: Cross multiply
    20,961.50x = 31,433.03 × 11,098.48
  4. Step 4: Simplify right side
    20,961.50x = 348,858,642.14
  5. Step 5: Solve for x
    x = 348,858,642.14/20,961.50
  6. Step 6: Final answer
    x = 16,642.83

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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.