Home / 20,529.73-30,734.62-18,559.91

Finding the Fourth Proportional to 20,529.73, 30,734.62 and 18,559.91

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Solution

The fourth proportional to 20,529.73, 30,734.62 and 18,559.91 is: 27,785.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.73 : 30,734.62 = 18,559.91 : x
  2. Step 2: Convert to fraction form
    20,529.73/30,734.62 = 18,559.91/x
  3. Step 3: Cross multiply
    20,529.73x = 30,734.62 × 18,559.91
  4. Step 4: Simplify right side
    20,529.73x = 570,431,781.08
  5. Step 5: Solve for x
    x = 570,431,781.08/20,529.73
  6. Step 6: Final answer
    x = 27,785.64

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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.