Home / 28,449.67-39,260.46-15,874.42

Finding the Fourth Proportional to 28,449.67, 39,260.46 and 15,874.42

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Solution

The fourth proportional to 28,449.67, 39,260.46 and 15,874.42 is: 21,906.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449.67 : 39,260.46 = 15,874.42 : x
  2. Step 2: Convert to fraction form
    28,449.67/39,260.46 = 15,874.42/x
  3. Step 3: Cross multiply
    28,449.67x = 39,260.46 × 15,874.42
  4. Step 4: Simplify right side
    28,449.67x = 623,237,031.43
  5. Step 5: Solve for x
    x = 623,237,031.43/28,449.67
  6. Step 6: Final answer
    x = 21,906.65

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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.