Home / 25,872.72-38,811.42-11,078.28

Finding the Fourth Proportional to 25,872.72, 38,811.42 and 11,078.28

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Solution

The fourth proportional to 25,872.72, 38,811.42 and 11,078.28 is: 16,618.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,872.72 : 38,811.42 = 11,078.28 : x
  2. Step 2: Convert to fraction form
    25,872.72/38,811.42 = 11,078.28/x
  3. Step 3: Cross multiply
    25,872.72x = 38,811.42 × 11,078.28
  4. Step 4: Simplify right side
    25,872.72x = 429,963,777.96
  5. Step 5: Solve for x
    x = 429,963,777.96/25,872.72
  6. Step 6: Final answer
    x = 16,618.42

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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.