Home / 18,638.40-27,834.96-16,180.80

Finding the Fourth Proportional to 18,638.40, 27,834.96 and 16,180.80

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Solution

The fourth proportional to 18,638.40, 27,834.96 and 16,180.80 is: 24,164.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.40 : 27,834.96 = 16,180.80 : x
  2. Step 2: Convert to fraction form
    18,638.40/27,834.96 = 16,180.80/x
  3. Step 3: Cross multiply
    18,638.40x = 27,834.96 × 16,180.80
  4. Step 4: Simplify right side
    18,638.40x = 450,391,920.77
  5. Step 5: Solve for x
    x = 450,391,920.77/18,638.40
  6. Step 6: Final answer
    x = 24,164.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.