Home / 13,432.46-20,148.66-3,571.74

Finding the Fourth Proportional to 13,432.46, 20,148.66 and 3,571.74

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Solution

The fourth proportional to 13,432.46, 20,148.66 and 3,571.74 is: 5,357.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.46 : 20,148.66 = 3,571.74 : x
  2. Step 2: Convert to fraction form
    13,432.46/20,148.66 = 3,571.74/x
  3. Step 3: Cross multiply
    13,432.46x = 20,148.66 × 3,571.74
  4. Step 4: Simplify right side
    13,432.46x = 71,965,774.87
  5. Step 5: Solve for x
    x = 71,965,774.87/13,432.46
  6. Step 6: Final answer
    x = 5,357.60

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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.