Home / 13,825.20-20,731.56-3,962.22

Finding the Fourth Proportional to 13,825.20, 20,731.56 and 3,962.22

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Solution

The fourth proportional to 13,825.20, 20,731.56 and 3,962.22 is: 5,941.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.20 : 20,731.56 = 3,962.22 : x
  2. Step 2: Convert to fraction form
    13,825.20/20,731.56 = 3,962.22/x
  3. Step 3: Cross multiply
    13,825.20x = 20,731.56 × 3,962.22
  4. Step 4: Simplify right side
    13,825.20x = 82,143,001.66
  5. Step 5: Solve for x
    x = 82,143,001.66/13,825.20
  6. Step 6: Final answer
    x = 5,941.54

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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.