Home / 25,488.62-38,164.41-20,789.24

Finding the Fourth Proportional to 25,488.62, 38,164.41 and 20,789.24

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Solution

The fourth proportional to 25,488.62, 38,164.41 and 20,789.24 is: 31,127.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,488.62 : 38,164.41 = 20,789.24 : x
  2. Step 2: Convert to fraction form
    25,488.62/38,164.41 = 20,789.24/x
  3. Step 3: Cross multiply
    25,488.62x = 38,164.41 × 20,789.24
  4. Step 4: Simplify right side
    25,488.62x = 793,409,078.95
  5. Step 5: Solve for x
    x = 793,409,078.95/25,488.62
  6. Step 6: Final answer
    x = 31,127.97

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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.