Home / 20,606.25-30,912.36-6,375.84

Finding the Fourth Proportional to 20,606.25, 30,912.36 and 6,375.84

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Solution

The fourth proportional to 20,606.25, 30,912.36 and 6,375.84 is: 9,564.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.25 : 30,912.36 = 6,375.84 : x
  2. Step 2: Convert to fraction form
    20,606.25/30,912.36 = 6,375.84/x
  3. Step 3: Cross multiply
    20,606.25x = 30,912.36 × 6,375.84
  4. Step 4: Simplify right side
    20,606.25x = 197,092,261.38
  5. Step 5: Solve for x
    x = 197,092,261.38/20,606.25
  6. Step 6: Final answer
    x = 9,564.68

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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.