Home / 20,712.33-28,582.00-11,758.66

Finding the Fourth Proportional to 20,712.33, 28,582.00 and 11,758.66

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Solution

The fourth proportional to 20,712.33, 28,582.00 and 11,758.66 is: 16,226.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712.33 : 28,582.00 = 11,758.66 : x
  2. Step 2: Convert to fraction form
    20,712.33/28,582.00 = 11,758.66/x
  3. Step 3: Cross multiply
    20,712.33x = 28,582.00 × 11,758.66
  4. Step 4: Simplify right side
    20,712.33x = 336,085,919.27
  5. Step 5: Solve for x
    x = 336,085,919.27/20,712.33
  6. Step 6: Final answer
    x = 16,226.37

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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.