Home / 21,061.11-29,064.47-11,629.68

Finding the Fourth Proportional to 21,061.11, 29,064.47 and 11,629.68

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Solution

The fourth proportional to 21,061.11, 29,064.47 and 11,629.68 is: 16,049.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,061.11 : 29,064.47 = 11,629.68 : x
  2. Step 2: Convert to fraction form
    21,061.11/29,064.47 = 11,629.68/x
  3. Step 3: Cross multiply
    21,061.11x = 29,064.47 × 11,629.68
  4. Step 4: Simplify right side
    21,061.11x = 338,010,383.75
  5. Step 5: Solve for x
    x = 338,010,383.75/21,061.11
  6. Step 6: Final answer
    x = 16,049.03

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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.