Home / 28,171.50-38,876.10-16,234.14

Finding the Fourth Proportional to 28,171.50, 38,876.10 and 16,234.14

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Solution

The fourth proportional to 28,171.50, 38,876.10 and 16,234.14 is: 22,402.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,171.50 : 38,876.10 = 16,234.14 : x
  2. Step 2: Convert to fraction form
    28,171.50/38,876.10 = 16,234.14/x
  3. Step 3: Cross multiply
    28,171.50x = 38,876.10 × 16,234.14
  4. Step 4: Simplify right side
    28,171.50x = 631,120,050.05
  5. Step 5: Solve for x
    x = 631,120,050.05/28,171.50
  6. Step 6: Final answer
    x = 22,402.78

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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.