Home / 30,171.25-41,644.39-18,833.91

Finding the Fourth Proportional to 30,171.25, 41,644.39 and 18,833.91

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Solution

The fourth proportional to 30,171.25, 41,644.39 and 18,833.91 is: 25,995.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,171.25 : 41,644.39 = 18,833.91 : x
  2. Step 2: Convert to fraction form
    30,171.25/41,644.39 = 18,833.91/x
  3. Step 3: Cross multiply
    30,171.25x = 41,644.39 × 18,833.91
  4. Step 4: Simplify right side
    30,171.25x = 784,326,693.26
  5. Step 5: Solve for x
    x = 784,326,693.26/30,171.25
  6. Step 6: Final answer
    x = 25,995.83

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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.