Home / 25,719.75-38,579.35-19,517.85

Finding the Fourth Proportional to 25,719.75, 38,579.35 and 19,517.85

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Solution

The fourth proportional to 25,719.75, 38,579.35 and 19,517.85 is: 29,276.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,719.75 : 38,579.35 = 19,517.85 : x
  2. Step 2: Convert to fraction form
    25,719.75/38,579.35 = 19,517.85/x
  3. Step 3: Cross multiply
    25,719.75x = 38,579.35 × 19,517.85
  4. Step 4: Simplify right side
    25,719.75x = 752,985,966.40
  5. Step 5: Solve for x
    x = 752,985,966.40/25,719.75
  6. Step 6: Final answer
    x = 29,276.57

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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.