Home / 21,167.66-29,212.26-11,735.54

Finding the Fourth Proportional to 21,167.66, 29,212.26 and 11,735.54

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Solution

The fourth proportional to 21,167.66, 29,212.26 and 11,735.54 is: 16,195.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167.66 : 29,212.26 = 11,735.54 : x
  2. Step 2: Convert to fraction form
    21,167.66/29,212.26 = 11,735.54/x
  3. Step 3: Cross multiply
    21,167.66x = 29,212.26 × 11,735.54
  4. Step 4: Simplify right side
    21,167.66x = 342,821,645.72
  5. Step 5: Solve for x
    x = 342,821,645.72/21,167.66
  6. Step 6: Final answer
    x = 16,195.54

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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.