Home / 25,719.15-38,578.45-19,517.26

Finding the Fourth Proportional to 25,719.15, 38,578.45 and 19,517.26

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Solution

The fourth proportional to 25,719.15, 38,578.45 and 19,517.26 is: 29,275.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,719.15 : 38,578.45 = 19,517.26 : x
  2. Step 2: Convert to fraction form
    25,719.15/38,578.45 = 19,517.26/x
  3. Step 3: Cross multiply
    25,719.15x = 38,578.45 × 19,517.26
  4. Step 4: Simplify right side
    25,719.15x = 752,945,639.05
  5. Step 5: Solve for x
    x = 752,945,639.05/25,719.15
  6. Step 6: Final answer
    x = 29,275.68

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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.