Home / 22,138.68-30,550.47-12,066.90

Finding the Fourth Proportional to 22,138.68, 30,550.47 and 12,066.90

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Solution

The fourth proportional to 22,138.68, 30,550.47 and 12,066.90 is: 16,651.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,138.68 : 30,550.47 = 12,066.90 : x
  2. Step 2: Convert to fraction form
    22,138.68/30,550.47 = 12,066.90/x
  3. Step 3: Cross multiply
    22,138.68x = 30,550.47 × 12,066.90
  4. Step 4: Simplify right side
    22,138.68x = 368,649,466.44
  5. Step 5: Solve for x
    x = 368,649,466.44/22,138.68
  6. Step 6: Final answer
    x = 16,651.83

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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.