Home / 21,161.67-29,205.14-11,732.55

Finding the Fourth Proportional to 21,161.67, 29,205.14 and 11,732.55

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Solution

The fourth proportional to 21,161.67, 29,205.14 and 11,732.55 is: 16,192.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,161.67 : 29,205.14 = 11,732.55 : x
  2. Step 2: Convert to fraction form
    21,161.67/29,205.14 = 11,732.55/x
  3. Step 3: Cross multiply
    21,161.67x = 29,205.14 × 11,732.55
  4. Step 4: Simplify right side
    21,161.67x = 342,650,765.31
  5. Step 5: Solve for x
    x = 342,650,765.31/21,161.67
  6. Step 6: Final answer
    x = 16,192.05

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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.