Home / 20,146.67-30,221.49-5,355.26

Finding the Fourth Proportional to 20,146.67, 30,221.49 and 5,355.26

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Solution

The fourth proportional to 20,146.67, 30,221.49 and 5,355.26 is: 8,033.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.67 : 30,221.49 = 5,355.26 : x
  2. Step 2: Convert to fraction form
    20,146.67/30,221.49 = 5,355.26/x
  3. Step 3: Cross multiply
    20,146.67x = 30,221.49 × 5,355.26
  4. Step 4: Simplify right side
    20,146.67x = 161,843,936.54
  5. Step 5: Solve for x
    x = 161,843,936.54/20,146.67
  6. Step 6: Final answer
    x = 8,033.28

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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.