Home / 30,406.08-45,613.92-12,876

Finding the Fourth Proportional to 30,406.08, 45,613.92 and 12,876

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Solution

The fourth proportional to 30,406.08, 45,613.92 and 12,876 is: 19,316.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,406.08 : 45,613.92 = 12,876 : x
  2. Step 2: Convert to fraction form
    30,406.08/45,613.92 = 12,876/x
  3. Step 3: Cross multiply
    30,406.08x = 45,613.92 × 12,876
  4. Step 4: Simplify right side
    30,406.08x = 587,324,833.92
  5. Step 5: Solve for x
    x = 587,324,833.92/30,406.08
  6. Step 6: Final answer
    x = 19,316.03

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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.