Home / 30,168.45-41,645.04-18,228.80

Finding the Fourth Proportional to 30,168.45, 41,645.04 and 18,228.80

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Solution

The fourth proportional to 30,168.45, 41,645.04 and 18,228.80 is: 25,163.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.45 : 41,645.04 = 18,228.80 : x
  2. Step 2: Convert to fraction form
    30,168.45/41,645.04 = 18,228.80/x
  3. Step 3: Cross multiply
    30,168.45x = 41,645.04 × 18,228.80
  4. Step 4: Simplify right side
    30,168.45x = 759,138,906.65
  5. Step 5: Solve for x
    x = 759,138,906.65/30,168.45
  6. Step 6: Final answer
    x = 25,163.34

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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.