Home / 21,166.22-29,211.46-11,736.60

Finding the Fourth Proportional to 21,166.22, 29,211.46 and 11,736.60

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Solution

The fourth proportional to 21,166.22, 29,211.46 and 11,736.60 is: 16,197.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,166.22 : 29,211.46 = 11,736.60 : x
  2. Step 2: Convert to fraction form
    21,166.22/29,211.46 = 11,736.60/x
  3. Step 3: Cross multiply
    21,166.22x = 29,211.46 × 11,736.60
  4. Step 4: Simplify right side
    21,166.22x = 342,843,221.44
  5. Step 5: Solve for x
    x = 342,843,221.44/21,166.22
  6. Step 6: Final answer
    x = 16,197.66

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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.