Home / 19,385.97-29,040.68-15,205.15

Finding the Fourth Proportional to 19,385.97, 29,040.68 and 15,205.15

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Solution

The fourth proportional to 19,385.97, 29,040.68 and 15,205.15 is: 22,777.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,385.97 : 29,040.68 = 15,205.15 : x
  2. Step 2: Convert to fraction form
    19,385.97/29,040.68 = 15,205.15/x
  3. Step 3: Cross multiply
    19,385.97x = 29,040.68 × 15,205.15
  4. Step 4: Simplify right side
    19,385.97x = 441,567,819.48
  5. Step 5: Solve for x
    x = 441,567,819.48/19,385.97
  6. Step 6: Final answer
    x = 22,777.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.