Home / 38,414.25-57,647.40-13,454.51

Finding the Fourth Proportional to 38,414.25, 57,647.40 and 13,454.51

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Solution

The fourth proportional to 38,414.25, 57,647.40 and 13,454.51 is: 20,190.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,414.25 : 57,647.40 = 13,454.51 : x
  2. Step 2: Convert to fraction form
    38,414.25/57,647.40 = 13,454.51/x
  3. Step 3: Cross multiply
    38,414.25x = 57,647.40 × 13,454.51
  4. Step 4: Simplify right side
    38,414.25x = 775,617,181.08
  5. Step 5: Solve for x
    x = 775,617,181.08/38,414.25
  6. Step 6: Final answer
    x = 20,190.87

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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.