Home / 20,572.38-30,900.49-13,562.44

Finding the Fourth Proportional to 20,572.38, 30,900.49 and 13,562.44

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Solution

The fourth proportional to 20,572.38, 30,900.49 and 13,562.44 is: 20,371.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572.38 : 30,900.49 = 13,562.44 : x
  2. Step 2: Convert to fraction form
    20,572.38/30,900.49 = 13,562.44/x
  3. Step 3: Cross multiply
    20,572.38x = 30,900.49 × 13,562.44
  4. Step 4: Simplify right side
    20,572.38x = 419,085,930.44
  5. Step 5: Solve for x
    x = 419,085,930.44/20,572.38
  6. Step 6: Final answer
    x = 20,371.29

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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.