Home / 25,949.34-38,920.49-10,143.38

Finding the Fourth Proportional to 25,949.34, 38,920.49 and 10,143.38

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Solution

The fourth proportional to 25,949.34, 38,920.49 and 10,143.38 is: 15,213.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,949.34 : 38,920.49 = 10,143.38 : x
  2. Step 2: Convert to fraction form
    25,949.34/38,920.49 = 10,143.38/x
  3. Step 3: Cross multiply
    25,949.34x = 38,920.49 × 10,143.38
  4. Step 4: Simplify right side
    25,949.34x = 394,785,112.57
  5. Step 5: Solve for x
    x = 394,785,112.57/25,949.34
  6. Step 6: Final answer
    x = 15,213.68

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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.