Home / 20,406.73-28,161.26-11,454.24

Finding the Fourth Proportional to 20,406.73, 28,161.26 and 11,454.24

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Solution

The fourth proportional to 20,406.73, 28,161.26 and 11,454.24 is: 15,806.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,406.73 : 28,161.26 = 11,454.24 : x
  2. Step 2: Convert to fraction form
    20,406.73/28,161.26 = 11,454.24/x
  3. Step 3: Cross multiply
    20,406.73x = 28,161.26 × 11,454.24
  4. Step 4: Simplify right side
    20,406.73x = 322,565,773.47
  5. Step 5: Solve for x
    x = 322,565,773.47/20,406.73
  6. Step 6: Final answer
    x = 15,806.83

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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.