Home / 30,371.38-41,917.12-18,432.41

Finding the Fourth Proportional to 30,371.38, 41,917.12 and 18,432.41

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Solution

The fourth proportional to 30,371.38, 41,917.12 and 18,432.41 is: 25,439.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,371.38 : 41,917.12 = 18,432.41 : x
  2. Step 2: Convert to fraction form
    30,371.38/41,917.12 = 18,432.41/x
  3. Step 3: Cross multiply
    30,371.38x = 41,917.12 × 18,432.41
  4. Step 4: Simplify right side
    30,371.38x = 772,633,286.19
  5. Step 5: Solve for x
    x = 772,633,286.19/30,371.38
  6. Step 6: Final answer
    x = 25,439.52

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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.