Home / 20,382.32-30,582.26-11,028.90

Finding the Fourth Proportional to 20,382.32, 30,582.26 and 11,028.90

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Solution

The fourth proportional to 20,382.32, 30,582.26 and 11,028.90 is: 16,548.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,382.32 : 30,582.26 = 11,028.90 : x
  2. Step 2: Convert to fraction form
    20,382.32/30,582.26 = 11,028.90/x
  3. Step 3: Cross multiply
    20,382.32x = 30,582.26 × 11,028.90
  4. Step 4: Simplify right side
    20,382.32x = 337,288,632.17
  5. Step 5: Solve for x
    x = 337,288,632.17/20,382.32
  6. Step 6: Final answer
    x = 16,548.10

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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.