Home / 30,375.30-41,910.62-18,436.41

Finding the Fourth Proportional to 30,375.30, 41,910.62 and 18,436.41

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Solution

The fourth proportional to 30,375.30, 41,910.62 and 18,436.41 is: 25,437.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,375.30 : 41,910.62 = 18,436.41 : x
  2. Step 2: Convert to fraction form
    30,375.30/41,910.62 = 18,436.41/x
  3. Step 3: Cross multiply
    30,375.30x = 41,910.62 × 18,436.41
  4. Step 4: Simplify right side
    30,375.30x = 772,681,281.49
  5. Step 5: Solve for x
    x = 772,681,281.49/30,375.30
  6. Step 6: Final answer
    x = 25,437.81

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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.