Home / 30,612.64-42,245.52-17,183.61

Finding the Fourth Proportional to 30,612.64, 42,245.52 and 17,183.61

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Solution

The fourth proportional to 30,612.64, 42,245.52 and 17,183.61 is: 23,713.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,612.64 : 42,245.52 = 17,183.61 : x
  2. Step 2: Convert to fraction form
    30,612.64/42,245.52 = 17,183.61/x
  3. Step 3: Cross multiply
    30,612.64x = 42,245.52 × 17,183.61
  4. Step 4: Simplify right side
    30,612.64x = 725,930,539.93
  5. Step 5: Solve for x
    x = 725,930,539.93/30,612.64
  6. Step 6: Final answer
    x = 23,713.42

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Double scale
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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.