Home / 38,982.94-58,478.05-12,680.62

Finding the Fourth Proportional to 38,982.94, 58,478.05 and 12,680.62

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Solution

The fourth proportional to 38,982.94, 58,478.05 and 12,680.62 is: 19,022.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,982.94 : 58,478.05 = 12,680.62 : x
  2. Step 2: Convert to fraction form
    38,982.94/58,478.05 = 12,680.62/x
  3. Step 3: Cross multiply
    38,982.94x = 58,478.05 × 12,680.62
  4. Step 4: Simplify right side
    38,982.94x = 741,537,800.05
  5. Step 5: Solve for x
    x = 741,537,800.05/38,982.94
  6. Step 6: Final answer
    x = 19,022.11

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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.