Home / 28,425.25-39,226.85-15,849.73

Finding the Fourth Proportional to 28,425.25, 39,226.85 and 15,849.73

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Solution

The fourth proportional to 28,425.25, 39,226.85 and 15,849.73 is: 21,872.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425.25 : 39,226.85 = 15,849.73 : x
  2. Step 2: Convert to fraction form
    28,425.25/39,226.85 = 15,849.73/x
  3. Step 3: Cross multiply
    28,425.25x = 39,226.85 × 15,849.73
  4. Step 4: Simplify right side
    28,425.25x = 621,734,981.25
  5. Step 5: Solve for x
    x = 621,734,981.25/28,425.25
  6. Step 6: Final answer
    x = 21,872.63

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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.