Home / 19,009.35-28,514.03-18,620.55

Finding the Fourth Proportional to 19,009.35, 28,514.03 and 18,620.55

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Solution

The fourth proportional to 19,009.35, 28,514.03 and 18,620.55 is: 27,930.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,009.35 : 28,514.03 = 18,620.55 : x
  2. Step 2: Convert to fraction form
    19,009.35/28,514.03 = 18,620.55/x
  3. Step 3: Cross multiply
    19,009.35x = 28,514.03 × 18,620.55
  4. Step 4: Simplify right side
    19,009.35x = 530,946,828.21
  5. Step 5: Solve for x
    x = 530,946,828.21/19,009.35
  6. Step 6: Final answer
    x = 27,930.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.