Home / 21,250.88-29,324.32-11,819.68

Finding the Fourth Proportional to 21,250.88, 29,324.32 and 11,819.68

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Solution

The fourth proportional to 21,250.88, 29,324.32 and 11,819.68 is: 16,310.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.88 : 29,324.32 = 11,819.68 : x
  2. Step 2: Convert to fraction form
    21,250.88/29,324.32 = 11,819.68/x
  3. Step 3: Cross multiply
    21,250.88x = 29,324.32 × 11,819.68
  4. Step 4: Simplify right side
    21,250.88x = 346,604,078.62
  5. Step 5: Solve for x
    x = 346,604,078.62/21,250.88
  6. Step 6: Final answer
    x = 16,310.10

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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.