Home / 20,593.16-28,418.49-11,161.74

Finding the Fourth Proportional to 20,593.16, 28,418.49 and 11,161.74

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Solution

The fourth proportional to 20,593.16, 28,418.49 and 11,161.74 is: 15,403.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.16 : 28,418.49 = 11,161.74 : x
  2. Step 2: Convert to fraction form
    20,593.16/28,418.49 = 11,161.74/x
  3. Step 3: Cross multiply
    20,593.16x = 28,418.49 × 11,161.74
  4. Step 4: Simplify right side
    20,593.16x = 317,199,796.57
  5. Step 5: Solve for x
    x = 317,199,796.57/20,593.16
  6. Step 6: Final answer
    x = 15,403.17

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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.