Home / 20,265.14-30,375.84-8,586.56

Finding the Fourth Proportional to 20,265.14, 30,375.84 and 8,586.56

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Solution

The fourth proportional to 20,265.14, 30,375.84 and 8,586.56 is: 12,870.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,265.14 : 30,375.84 = 8,586.56 : x
  2. Step 2: Convert to fraction form
    20,265.14/30,375.84 = 8,586.56/x
  3. Step 3: Cross multiply
    20,265.14x = 30,375.84 × 8,586.56
  4. Step 4: Simplify right side
    20,265.14x = 260,823,972.71
  5. Step 5: Solve for x
    x = 260,823,972.71/20,265.14
  6. Step 6: Final answer
    x = 12,870.57

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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.