Home / 20,020.45-29,997.69-6,865.60

Finding the Fourth Proportional to 20,020.45, 29,997.69 and 6,865.60

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Solution

The fourth proportional to 20,020.45, 29,997.69 and 6,865.60 is: 10,287.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.45 : 29,997.69 = 6,865.60 : x
  2. Step 2: Convert to fraction form
    20,020.45/29,997.69 = 6,865.60/x
  3. Step 3: Cross multiply
    20,020.45x = 29,997.69 × 6,865.60
  4. Step 4: Simplify right side
    20,020.45x = 205,952,140.46
  5. Step 5: Solve for x
    x = 205,952,140.46/20,020.45
  6. Step 6: Final answer
    x = 10,287.09

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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.