Home / 25,672.20-38,456.46-21,006.60

Finding the Fourth Proportional to 25,672.20, 38,456.46 and 21,006.60

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Solution

The fourth proportional to 25,672.20, 38,456.46 and 21,006.60 is: 31,467.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,672.20 : 38,456.46 = 21,006.60 : x
  2. Step 2: Convert to fraction form
    25,672.20/38,456.46 = 21,006.60/x
  3. Step 3: Cross multiply
    25,672.20x = 38,456.46 × 21,006.60
  4. Step 4: Simplify right side
    25,672.20x = 807,839,472.64
  5. Step 5: Solve for x
    x = 807,839,472.64/25,672.20
  6. Step 6: Final answer
    x = 31,467.48

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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.