Home / 19,093.20-28,661.40-11,306.40

Finding the Fourth Proportional to 19,093.20, 28,661.40 and 11,306.40

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Solution

The fourth proportional to 19,093.20, 28,661.40 and 11,306.40 is: 16,972.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,093.20 : 28,661.40 = 11,306.40 : x
  2. Step 2: Convert to fraction form
    19,093.20/28,661.40 = 11,306.40/x
  3. Step 3: Cross multiply
    19,093.20x = 28,661.40 × 11,306.40
  4. Step 4: Simplify right side
    19,093.20x = 324,057,252.96
  5. Step 5: Solve for x
    x = 324,057,252.96/19,093.20
  6. Step 6: Final answer
    x = 16,972.39

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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.