Home / 20,551.55-30,823.78-5,756.95

Finding the Fourth Proportional to 20,551.55, 30,823.78 and 5,756.95

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Solution

The fourth proportional to 20,551.55, 30,823.78 and 5,756.95 is: 8,634.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.55 : 30,823.78 = 5,756.95 : x
  2. Step 2: Convert to fraction form
    20,551.55/30,823.78 = 5,756.95/x
  3. Step 3: Cross multiply
    20,551.55x = 30,823.78 × 5,756.95
  4. Step 4: Simplify right side
    20,551.55x = 177,450,960.27
  5. Step 5: Solve for x
    x = 177,450,960.27/20,551.55
  6. Step 6: Final answer
    x = 8,634.43

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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.