Home / 19,864.21-27,404.77-12,794.73

Finding the Fourth Proportional to 19,864.21, 27,404.77 and 12,794.73

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Solution

The fourth proportional to 19,864.21, 27,404.77 and 12,794.73 is: 17,651.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,864.21 : 27,404.77 = 12,794.73 : x
  2. Step 2: Convert to fraction form
    19,864.21/27,404.77 = 12,794.73/x
  3. Step 3: Cross multiply
    19,864.21x = 27,404.77 × 12,794.73
  4. Step 4: Simplify right side
    19,864.21x = 350,636,568.89
  5. Step 5: Solve for x
    x = 350,636,568.89/19,864.21
  6. Step 6: Final answer
    x = 17,651.68

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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.