Home / 30,769.89-46,155.20-8,581.91

Finding the Fourth Proportional to 30,769.89, 46,155.20 and 8,581.91

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Solution

The fourth proportional to 30,769.89, 46,155.20 and 8,581.91 is: 12,872.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,769.89 : 46,155.20 = 8,581.91 : x
  2. Step 2: Convert to fraction form
    30,769.89/46,155.20 = 8,581.91/x
  3. Step 3: Cross multiply
    30,769.89x = 46,155.20 × 8,581.91
  4. Step 4: Simplify right side
    30,769.89x = 396,099,844.91
  5. Step 5: Solve for x
    x = 396,099,844.91/30,769.89
  6. Step 6: Final answer
    x = 12,872.97

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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.