Home / 13,432.57-20,148.84-3,571.85

Finding the Fourth Proportional to 13,432.57, 20,148.84 and 3,571.85

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Solution

The fourth proportional to 13,432.57, 20,148.84 and 3,571.85 is: 5,357.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.57 : 20,148.84 = 3,571.85 : x
  2. Step 2: Convert to fraction form
    13,432.57/20,148.84 = 3,571.85/x
  3. Step 3: Cross multiply
    13,432.57x = 20,148.84 × 3,571.85
  4. Step 4: Simplify right side
    13,432.57x = 71,968,634.15
  5. Step 5: Solve for x
    x = 71,968,634.15/13,432.57
  6. Step 6: Final answer
    x = 5,357.77

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1.5x scale

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.