Home / 30,680.97-46,016.24-8,489.15

Finding the Fourth Proportional to 30,680.97, 46,016.24 and 8,489.15

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Solution

The fourth proportional to 30,680.97, 46,016.24 and 8,489.15 is: 12,732.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680.97 : 46,016.24 = 8,489.15 : x
  2. Step 2: Convert to fraction form
    30,680.97/46,016.24 = 8,489.15/x
  3. Step 3: Cross multiply
    30,680.97x = 46,016.24 × 8,489.15
  4. Step 4: Simplify right side
    30,680.97x = 390,638,763.80
  5. Step 5: Solve for x
    x = 390,638,763.80/30,680.97
  6. Step 6: Final answer
    x = 12,732.28

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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.