Home / 19,183.33-28,775-18,100.45

Finding the Fourth Proportional to 19,183.33, 28,775 and 18,100.45

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Solution

The fourth proportional to 19,183.33, 28,775 and 18,100.45 is: 27,150.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,183.33 : 28,775 = 18,100.45 : x
  2. Step 2: Convert to fraction form
    19,183.33/28,775 = 18,100.45/x
  3. Step 3: Cross multiply
    19,183.33x = 28,775 × 18,100.45
  4. Step 4: Simplify right side
    19,183.33x = 520,840,448.75
  5. Step 5: Solve for x
    x = 520,840,448.75/19,183.33
  6. Step 6: Final answer
    x = 27,150.68

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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.