Home / 18,725.54-25,854.24-15,156.38

Finding the Fourth Proportional to 18,725.54, 25,854.24 and 15,156.38

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Solution

The fourth proportional to 18,725.54, 25,854.24 and 15,156.38 is: 20,926.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.54 : 25,854.24 = 15,156.38 : x
  2. Step 2: Convert to fraction form
    18,725.54/25,854.24 = 15,156.38/x
  3. Step 3: Cross multiply
    18,725.54x = 25,854.24 × 15,156.38
  4. Step 4: Simplify right side
    18,725.54x = 391,856,556.78
  5. Step 5: Solve for x
    x = 391,856,556.78/18,725.54
  6. Step 6: Final answer
    x = 20,926.32

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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.