Home / 20,593.09-28,419.91-11,640.66

Finding the Fourth Proportional to 20,593.09, 28,419.91 and 11,640.66

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Solution

The fourth proportional to 20,593.09, 28,419.91 and 11,640.66 is: 16,064.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.09 : 28,419.91 = 11,640.66 : x
  2. Step 2: Convert to fraction form
    20,593.09/28,419.91 = 11,640.66/x
  3. Step 3: Cross multiply
    20,593.09x = 28,419.91 × 11,640.66
  4. Step 4: Simplify right side
    20,593.09x = 330,826,599.21
  5. Step 5: Solve for x
    x = 330,826,599.21/20,593.09
  6. Step 6: Final answer
    x = 16,064.94

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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.