Home / 20,593.08-28,418.58-11,161.62

Finding the Fourth Proportional to 20,593.08, 28,418.58 and 11,161.62

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Solution

The fourth proportional to 20,593.08, 28,418.58 and 11,161.62 is: 15,403.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.08 : 28,418.58 = 11,161.62 : x
  2. Step 2: Convert to fraction form
    20,593.08/28,418.58 = 11,161.62/x
  3. Step 3: Cross multiply
    20,593.08x = 28,418.58 × 11,161.62
  4. Step 4: Simplify right side
    20,593.08x = 317,197,390.90
  5. Step 5: Solve for x
    x = 317,197,390.90/20,593.08
  6. Step 6: Final answer
    x = 15,403.11

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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.