Home / 38,640.75-57,998.52-18,664.26

Finding the Fourth Proportional to 38,640.75, 57,998.52 and 18,664.26

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Solution

The fourth proportional to 38,640.75, 57,998.52 and 18,664.26 is: 28,014.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,640.75 : 57,998.52 = 18,664.26 : x
  2. Step 2: Convert to fraction form
    38,640.75/57,998.52 = 18,664.26/x
  3. Step 3: Cross multiply
    38,640.75x = 57,998.52 × 18,664.26
  4. Step 4: Simplify right side
    38,640.75x = 1,082,499,456.90
  5. Step 5: Solve for x
    x = 1,082,499,456.90/38,640.75
  6. Step 6: Final answer
    x = 28,014.45

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1.5x scale

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.