Home / 19,447.90-29,169.11-11,100.85

Finding the Fourth Proportional to 19,447.90, 29,169.11 and 11,100.85

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Solution

The fourth proportional to 19,447.90, 29,169.11 and 11,100.85 is: 16,649.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,447.90 : 29,169.11 = 11,100.85 : x
  2. Step 2: Convert to fraction form
    19,447.90/29,169.11 = 11,100.85/x
  3. Step 3: Cross multiply
    19,447.90x = 29,169.11 × 11,100.85
  4. Step 4: Simplify right side
    19,447.90x = 323,801,869.57
  5. Step 5: Solve for x
    x = 323,801,869.57/19,447.90
  6. Step 6: Final answer
    x = 16,649.71

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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.