Home / 18,885.93-28,305.20-16,540.37

Finding the Fourth Proportional to 18,885.93, 28,305.20 and 16,540.37

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Solution

The fourth proportional to 18,885.93, 28,305.20 and 16,540.37 is: 24,789.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,885.93 : 28,305.20 = 16,540.37 : x
  2. Step 2: Convert to fraction form
    18,885.93/28,305.20 = 16,540.37/x
  3. Step 3: Cross multiply
    18,885.93x = 28,305.20 × 16,540.37
  4. Step 4: Simplify right side
    18,885.93x = 468,178,256.70
  5. Step 5: Solve for x
    x = 468,178,256.70/18,885.93
  6. Step 6: Final answer
    x = 24,789.79

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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.