Home / 20,372.73-28,120.26-13,202.41

Finding the Fourth Proportional to 20,372.73, 28,120.26 and 13,202.41

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Solution

The fourth proportional to 20,372.73, 28,120.26 and 13,202.41 is: 18,223.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,372.73 : 28,120.26 = 13,202.41 : x
  2. Step 2: Convert to fraction form
    20,372.73/28,120.26 = 13,202.41/x
  3. Step 3: Cross multiply
    20,372.73x = 28,120.26 × 13,202.41
  4. Step 4: Simplify right side
    20,372.73x = 371,255,201.83
  5. Step 5: Solve for x
    x = 371,255,201.83/20,372.73
  6. Step 6: Final answer
    x = 18,223.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.