Home / 25,115.40-37,629.90-13,251.60

Finding the Fourth Proportional to 25,115.40, 37,629.90 and 13,251.60

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Solution

The fourth proportional to 25,115.40, 37,629.90 and 13,251.60 is: 19,854.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,115.40 : 37,629.90 = 13,251.60 : x
  2. Step 2: Convert to fraction form
    25,115.40/37,629.90 = 13,251.60/x
  3. Step 3: Cross multiply
    25,115.40x = 37,629.90 × 13,251.60
  4. Step 4: Simplify right side
    25,115.40x = 498,656,382.84
  5. Step 5: Solve for x
    x = 498,656,382.84/25,115.40
  6. Step 6: Final answer
    x = 19,854.61

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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.