Home / 20,593.07-28,419.89-11,640.65

Finding the Fourth Proportional to 20,593.07, 28,419.89 and 11,640.65

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Solution

The fourth proportional to 20,593.07, 28,419.89 and 11,640.65 is: 16,064.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.07 : 28,419.89 = 11,640.65 : x
  2. Step 2: Convert to fraction form
    20,593.07/28,419.89 = 11,640.65/x
  3. Step 3: Cross multiply
    20,593.07x = 28,419.89 × 11,640.65
  4. Step 4: Simplify right side
    20,593.07x = 330,825,792.23
  5. Step 5: Solve for x
    x = 330,825,792.23/20,593.07
  6. Step 6: Final answer
    x = 16,064.91

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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.