Home / 21,144.54-29,179.22-11,453.82

Finding the Fourth Proportional to 21,144.54, 29,179.22 and 11,453.82

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Solution

The fourth proportional to 21,144.54, 29,179.22 and 11,453.82 is: 15,806.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,144.54 : 29,179.22 = 11,453.82 : x
  2. Step 2: Convert to fraction form
    21,144.54/29,179.22 = 11,453.82/x
  3. Step 3: Cross multiply
    21,144.54x = 29,179.22 × 11,453.82
  4. Step 4: Simplify right side
    21,144.54x = 334,213,452.83
  5. Step 5: Solve for x
    x = 334,213,452.83/21,144.54
  6. Step 6: Final answer
    x = 15,806.13

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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.