Home / 20,424.87-30,583.85-13,382.73

Finding the Fourth Proportional to 20,424.87, 30,583.85 and 13,382.73

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Solution

The fourth proportional to 20,424.87, 30,583.85 and 13,382.73 is: 20,039.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.87 : 30,583.85 = 13,382.73 : x
  2. Step 2: Convert to fraction form
    20,424.87/30,583.85 = 13,382.73/x
  3. Step 3: Cross multiply
    20,424.87x = 30,583.85 × 13,382.73
  4. Step 4: Simplify right side
    20,424.87x = 409,295,340.00
  5. Step 5: Solve for x
    x = 409,295,340.00/20,424.87
  6. Step 6: Final answer
    x = 20,039.07

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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.