Home / 21,222.74-29,287.17-11,791.10

Finding the Fourth Proportional to 21,222.74, 29,287.17 and 11,791.10

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Solution

The fourth proportional to 21,222.74, 29,287.17 and 11,791.10 is: 16,271.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,222.74 : 29,287.17 = 11,791.10 : x
  2. Step 2: Convert to fraction form
    21,222.74/29,287.17 = 11,791.10/x
  3. Step 3: Cross multiply
    21,222.74x = 29,287.17 × 11,791.10
  4. Step 4: Simplify right side
    21,222.74x = 345,327,950.19
  5. Step 5: Solve for x
    x = 345,327,950.19/21,222.74
  6. Step 6: Final answer
    x = 16,271.60

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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.