Home / 28,449.88-39,260.86-15,874.62

Finding the Fourth Proportional to 28,449.88, 39,260.86 and 15,874.62

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Solution

The fourth proportional to 28,449.88, 39,260.86 and 15,874.62 is: 21,906.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449.88 : 39,260.86 = 15,874.62 : x
  2. Step 2: Convert to fraction form
    28,449.88/39,260.86 = 15,874.62/x
  3. Step 3: Cross multiply
    28,449.88x = 39,260.86 × 15,874.62
  4. Step 4: Simplify right side
    28,449.88x = 623,251,233.37
  5. Step 5: Solve for x
    x = 623,251,233.37/28,449.88
  6. Step 6: Final answer
    x = 21,906.99

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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.