Home / 20,425.87-30,585.34-13,383.73

Finding the Fourth Proportional to 20,425.87, 30,585.34 and 13,383.73

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Solution

The fourth proportional to 20,425.87, 30,585.34 and 13,383.73 is: 20,040.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,425.87 : 30,585.34 = 13,383.73 : x
  2. Step 2: Convert to fraction form
    20,425.87/30,585.34 = 13,383.73/x
  3. Step 3: Cross multiply
    20,425.87x = 30,585.34 × 13,383.73
  4. Step 4: Simplify right side
    20,425.87x = 409,345,932.52
  5. Step 5: Solve for x
    x = 409,345,932.52/20,425.87
  6. Step 6: Final answer
    x = 20,040.56

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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.