Home / 20,906.08-28,833.49-18,382.93

Finding the Fourth Proportional to 20,906.08, 28,833.49 and 18,382.93

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Solution

The fourth proportional to 20,906.08, 28,833.49 and 18,382.93 is: 25,353.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,906.08 : 28,833.49 = 18,382.93 : x
  2. Step 2: Convert to fraction form
    20,906.08/28,833.49 = 18,382.93/x
  3. Step 3: Cross multiply
    20,906.08x = 28,833.49 × 18,382.93
  4. Step 4: Simplify right side
    20,906.08x = 530,044,028.33
  5. Step 5: Solve for x
    x = 530,044,028.33/20,906.08
  6. Step 6: Final answer
    x = 25,353.58

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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.