Home / 21,083.05-29,093.46-11,651

Finding the Fourth Proportional to 21,083.05, 29,093.46 and 11,651

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Solution

The fourth proportional to 21,083.05, 29,093.46 and 11,651 is: 16,077.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,083.05 : 29,093.46 = 11,651 : x
  2. Step 2: Convert to fraction form
    21,083.05/29,093.46 = 11,651/x
  3. Step 3: Cross multiply
    21,083.05x = 29,093.46 × 11,651
  4. Step 4: Simplify right side
    21,083.05x = 338,967,902.46
  5. Step 5: Solve for x
    x = 338,967,902.46/21,083.05
  6. Step 6: Final answer
    x = 16,077.75

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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.