Home / 30,150.21-41,601.92-18,205.55

Finding the Fourth Proportional to 30,150.21, 41,601.92 and 18,205.55

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Solution

The fourth proportional to 30,150.21, 41,601.92 and 18,205.55 is: 25,120.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,150.21 : 41,601.92 = 18,205.55 : x
  2. Step 2: Convert to fraction form
    30,150.21/41,601.92 = 18,205.55/x
  3. Step 3: Cross multiply
    30,150.21x = 41,601.92 × 18,205.55
  4. Step 4: Simplify right side
    30,150.21x = 757,385,535.62
  5. Step 5: Solve for x
    x = 757,385,535.62/30,150.21
  6. Step 6: Final answer
    x = 25,120.41

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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.