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Finding the Fourth Proportional to 27,620.96, 41,402.08 and 18,834.08

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Solution

The fourth proportional to 27,620.96, 41,402.08 and 18,834.08 is: 28,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,620.96 : 41,402.08 = 18,834.08 : x
  2. Step 2: Convert to fraction form
    27,620.96/41,402.08 = 18,834.08/x
  3. Step 3: Cross multiply
    27,620.96x = 41,402.08 × 18,834.08
  4. Step 4: Simplify right side
    27,620.96x = 779,770,086.89
  5. Step 5: Solve for x
    x = 779,770,086.89/27,620.96
  6. Step 6: Final answer
    x = 28,231.10

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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.