Home / 25,577.91-38,377.26-20,367.99

Finding the Fourth Proportional to 25,577.91, 38,377.26 and 20,367.99

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Solution

The fourth proportional to 25,577.91, 38,377.26 and 20,367.99 is: 30,560.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,577.91 : 38,377.26 = 20,367.99 : x
  2. Step 2: Convert to fraction form
    25,577.91/38,377.26 = 20,367.99/x
  3. Step 3: Cross multiply
    25,577.91x = 38,377.26 × 20,367.99
  4. Step 4: Simplify right side
    25,577.91x = 781,667,647.91
  5. Step 5: Solve for x
    x = 781,667,647.91/25,577.91
  6. Step 6: Final answer
    x = 30,560.26

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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.