Home / 21,242.22-29,314.44-11,682.33

Finding the Fourth Proportional to 21,242.22, 29,314.44 and 11,682.33

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Solution

The fourth proportional to 21,242.22, 29,314.44 and 11,682.33 is: 16,121.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,242.22 : 29,314.44 = 11,682.33 : x
  2. Step 2: Convert to fraction form
    21,242.22/29,314.44 = 11,682.33/x
  3. Step 3: Cross multiply
    21,242.22x = 29,314.44 × 11,682.33
  4. Step 4: Simplify right side
    21,242.22x = 342,460,961.85
  5. Step 5: Solve for x
    x = 342,460,961.85/21,242.22
  6. Step 6: Final answer
    x = 16,121.71

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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.