Home / 30,769.76-46,155.01-8,581.79

Finding the Fourth Proportional to 30,769.76, 46,155.01 and 8,581.79

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Solution

The fourth proportional to 30,769.76, 46,155.01 and 8,581.79 is: 12,872.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,769.76 : 46,155.01 = 8,581.79 : x
  2. Step 2: Convert to fraction form
    30,769.76/46,155.01 = 8,581.79/x
  3. Step 3: Cross multiply
    30,769.76x = 46,155.01 × 8,581.79
  4. Step 4: Simplify right side
    30,769.76x = 396,092,372.49
  5. Step 5: Solve for x
    x = 396,092,372.49/30,769.76
  6. Step 6: Final answer
    x = 12,872.78

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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.