Home / 20,593.36-28,418.85-11,161.96

Finding the Fourth Proportional to 20,593.36, 28,418.85 and 11,161.96

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Solution

The fourth proportional to 20,593.36, 28,418.85 and 11,161.96 is: 15,403.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.36 : 28,418.85 = 11,161.96 : x
  2. Step 2: Convert to fraction form
    20,593.36/28,418.85 = 11,161.96/x
  3. Step 3: Cross multiply
    20,593.36x = 28,418.85 × 11,161.96
  4. Step 4: Simplify right side
    20,593.36x = 317,210,066.95
  5. Step 5: Solve for x
    x = 317,210,066.95/20,593.36
  6. Step 6: Final answer
    x = 15,403.51

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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.