Home / 41,979-57,929.66-23,115.64

Finding the Fourth Proportional to 41,979, 57,929.66 and 23,115.64

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Solution

The fourth proportional to 41,979, 57,929.66 and 23,115.64 is: 31,898.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,979 : 57,929.66 = 23,115.64 : x
  2. Step 2: Convert to fraction form
    41,979/57,929.66 = 23,115.64/x
  3. Step 3: Cross multiply
    41,979x = 57,929.66 × 23,115.64
  4. Step 4: Simplify right side
    41,979x = 1,339,081,165.88
  5. Step 5: Solve for x
    x = 1,339,081,165.88/41,979
  6. Step 6: Final answer
    x = 31,898.83

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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.