Home / 20,593.53-28,418.31-11,161.89

Finding the Fourth Proportional to 20,593.53, 28,418.31 and 11,161.89

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Solution

The fourth proportional to 20,593.53, 28,418.31 and 11,161.89 is: 15,403.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.53 : 28,418.31 = 11,161.89 : x
  2. Step 2: Convert to fraction form
    20,593.53/28,418.31 = 11,161.89/x
  3. Step 3: Cross multiply
    20,593.53x = 28,418.31 × 11,161.89
  4. Step 4: Simplify right side
    20,593.53x = 317,202,050.21
  5. Step 5: Solve for x
    x = 317,202,050.21/20,593.53
  6. Step 6: Final answer
    x = 15,403.00

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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.