Home / 20,593.36-28,418.94-11,161.84

Finding the Fourth Proportional to 20,593.36, 28,418.94 and 11,161.84

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Solution

The fourth proportional to 20,593.36, 28,418.94 and 11,161.84 is: 15,403.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.36 : 28,418.94 = 11,161.84 : x
  2. Step 2: Convert to fraction form
    20,593.36/28,418.94 = 11,161.84/x
  3. Step 3: Cross multiply
    20,593.36x = 28,418.94 × 11,161.84
  4. Step 4: Simplify right side
    20,593.36x = 317,207,661.25
  5. Step 5: Solve for x
    x = 317,207,661.25/20,593.36
  6. Step 6: Final answer
    x = 15,403.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.