Home / 30,613.29-45,919.94-20,222.61

Finding the Fourth Proportional to 30,613.29, 45,919.94 and 20,222.61

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Solution

The fourth proportional to 30,613.29, 45,919.94 and 20,222.61 is: 30,333.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,613.29 : 45,919.94 = 20,222.61 : x
  2. Step 2: Convert to fraction form
    30,613.29/45,919.94 = 20,222.61/x
  3. Step 3: Cross multiply
    30,613.29x = 45,919.94 × 20,222.61
  4. Step 4: Simplify right side
    30,613.29x = 928,620,936.73
  5. Step 5: Solve for x
    x = 928,620,936.73/30,613.29
  6. Step 6: Final answer
    x = 30,333.92

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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.