Home / 25,481.18-38,192.93-12,974.78

Finding the Fourth Proportional to 25,481.18, 38,192.93 and 12,974.78

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Solution

The fourth proportional to 25,481.18, 38,192.93 and 12,974.78 is: 19,447.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,481.18 : 38,192.93 = 12,974.78 : x
  2. Step 2: Convert to fraction form
    25,481.18/38,192.93 = 12,974.78/x
  3. Step 3: Cross multiply
    25,481.18x = 38,192.93 × 12,974.78
  4. Step 4: Simplify right side
    25,481.18x = 495,544,799.43
  5. Step 5: Solve for x
    x = 495,544,799.43/25,481.18
  6. Step 6: Final answer
    x = 19,447.49

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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.