Home / 30,049.80-45,035.22-22,115.16

Finding the Fourth Proportional to 30,049.80, 45,035.22 and 22,115.16

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Solution

The fourth proportional to 30,049.80, 45,035.22 and 22,115.16 is: 33,143.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,049.80 : 45,035.22 = 22,115.16 : x
  2. Step 2: Convert to fraction form
    30,049.80/45,035.22 = 22,115.16/x
  3. Step 3: Cross multiply
    30,049.80x = 45,035.22 × 22,115.16
  4. Step 4: Simplify right side
    30,049.80x = 995,961,095.94
  5. Step 5: Solve for x
    x = 995,961,095.94/30,049.80
  6. Step 6: Final answer
    x = 33,143.68

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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.