Home / 25,881.72-38,824.92-11,087.28

Finding the Fourth Proportional to 25,881.72, 38,824.92 and 11,087.28

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Solution

The fourth proportional to 25,881.72, 38,824.92 and 11,087.28 is: 16,631.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,881.72 : 38,824.92 = 11,087.28 : x
  2. Step 2: Convert to fraction form
    25,881.72/38,824.92 = 11,087.28/x
  3. Step 3: Cross multiply
    25,881.72x = 38,824.92 × 11,087.28
  4. Step 4: Simplify right side
    25,881.72x = 430,462,759.02
  5. Step 5: Solve for x
    x = 430,462,759.02/25,881.72
  6. Step 6: Final answer
    x = 16,631.92

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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.