Home / 13,825.71-20,735.72-3,962.80

Finding the Fourth Proportional to 13,825.71, 20,735.72 and 3,962.80

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Solution

The fourth proportional to 13,825.71, 20,735.72 and 3,962.80 is: 5,943.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,825.71 : 20,735.72 = 3,962.80 : x
  2. Step 2: Convert to fraction form
    13,825.71/20,735.72 = 3,962.80/x
  3. Step 3: Cross multiply
    13,825.71x = 20,735.72 × 3,962.80
  4. Step 4: Simplify right side
    13,825.71x = 82,171,485.01
  5. Step 5: Solve for x
    x = 82,171,485.01/13,825.71
  6. Step 6: Final answer
    x = 5,943.38

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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.