Home / 30,210.97-41,691.11-16,783.47

Finding the Fourth Proportional to 30,210.97, 41,691.11 and 16,783.47

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Solution

The fourth proportional to 30,210.97, 41,691.11 and 16,783.47 is: 23,161.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,210.97 : 41,691.11 = 16,783.47 : x
  2. Step 2: Convert to fraction form
    30,210.97/41,691.11 = 16,783.47/x
  3. Step 3: Cross multiply
    30,210.97x = 41,691.11 × 16,783.47
  4. Step 4: Simplify right side
    30,210.97x = 699,721,640.14
  5. Step 5: Solve for x
    x = 699,721,640.14/30,210.97
  6. Step 6: Final answer
    x = 23,161.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.