Home / 25,757.80-38,636.70-7,289.96

Finding the Fourth Proportional to 25,757.80, 38,636.70 and 7,289.96

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Solution

The fourth proportional to 25,757.80, 38,636.70 and 7,289.96 is: 10,934.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,757.80 : 38,636.70 = 7,289.96 : x
  2. Step 2: Convert to fraction form
    25,757.80/38,636.70 = 7,289.96/x
  3. Step 3: Cross multiply
    25,757.80x = 38,636.70 × 7,289.96
  4. Step 4: Simplify right side
    25,757.80x = 281,659,997.53
  5. Step 5: Solve for x
    x = 281,659,997.53/25,757.80
  6. Step 6: Final answer
    x = 10,934.94

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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.