Home / 28,188.18-38,872.85-16,855.85

Finding the Fourth Proportional to 28,188.18, 38,872.85 and 16,855.85

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Solution

The fourth proportional to 28,188.18, 38,872.85 and 16,855.85 is: 23,245.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188.18 : 38,872.85 = 16,855.85 : x
  2. Step 2: Convert to fraction form
    28,188.18/38,872.85 = 16,855.85/x
  3. Step 3: Cross multiply
    28,188.18x = 38,872.85 × 16,855.85
  4. Step 4: Simplify right side
    28,188.18x = 655,234,650.03
  5. Step 5: Solve for x
    x = 655,234,650.03/28,188.18
  6. Step 6: Final answer
    x = 23,245.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.