Home / 13,940.70-20,910.93-3,552.42

Finding the Fourth Proportional to 13,940.70, 20,910.93 and 3,552.42

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Solution

The fourth proportional to 13,940.70, 20,910.93 and 3,552.42 is: 5,328.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,940.70 : 20,910.93 = 3,552.42 : x
  2. Step 2: Convert to fraction form
    13,940.70/20,910.93 = 3,552.42/x
  3. Step 3: Cross multiply
    13,940.70x = 20,910.93 × 3,552.42
  4. Step 4: Simplify right side
    13,940.70x = 74,284,405.95
  5. Step 5: Solve for x
    x = 74,284,405.95/13,940.70
  6. Step 6: Final answer
    x = 5,328.60

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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.