Home / 21,316.29-29,418.24-11,758.05

Finding the Fourth Proportional to 21,316.29, 29,418.24 and 11,758.05

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Solution

The fourth proportional to 21,316.29, 29,418.24 and 11,758.05 is: 16,227.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,316.29 : 29,418.24 = 11,758.05 : x
  2. Step 2: Convert to fraction form
    21,316.29/29,418.24 = 11,758.05/x
  3. Step 3: Cross multiply
    21,316.29x = 29,418.24 × 11,758.05
  4. Step 4: Simplify right side
    21,316.29x = 345,901,136.83
  5. Step 5: Solve for x
    x = 345,901,136.83/21,316.29
  6. Step 6: Final answer
    x = 16,227.08

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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.