Home / 20,243.70-30,365.37-5,451.39

Finding the Fourth Proportional to 20,243.70, 30,365.37 and 5,451.39

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Solution

The fourth proportional to 20,243.70, 30,365.37 and 5,451.39 is: 8,177.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.70 : 30,365.37 = 5,451.39 : x
  2. Step 2: Convert to fraction form
    20,243.70/30,365.37 = 5,451.39/x
  3. Step 3: Cross multiply
    20,243.70x = 30,365.37 × 5,451.39
  4. Step 4: Simplify right side
    20,243.70x = 165,533,474.36
  5. Step 5: Solve for x
    x = 165,533,474.36/20,243.70
  6. Step 6: Final answer
    x = 8,177.04

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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.