Home / 18,910.67-28,391.11-16,155.05

Finding the Fourth Proportional to 18,910.67, 28,391.11 and 16,155.05

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Solution

The fourth proportional to 18,910.67, 28,391.11 and 16,155.05 is: 24,254.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,910.67 : 28,391.11 = 16,155.05 : x
  2. Step 2: Convert to fraction form
    18,910.67/28,391.11 = 16,155.05/x
  3. Step 3: Cross multiply
    18,910.67x = 28,391.11 × 16,155.05
  4. Step 4: Simplify right side
    18,910.67x = 458,659,619.26
  5. Step 5: Solve for x
    x = 458,659,619.26/18,910.67
  6. Step 6: Final answer
    x = 24,254.02

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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.