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Finding the Fourth Proportional to 27,680.70, 41,492.70 and 13,619.10

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Solution

The fourth proportional to 27,680.70, 41,492.70 and 13,619.10 is: 20,414.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,680.70 : 41,492.70 = 13,619.10 : x
  2. Step 2: Convert to fraction form
    27,680.70/41,492.70 = 13,619.10/x
  3. Step 3: Cross multiply
    27,680.70x = 41,492.70 × 13,619.10
  4. Step 4: Simplify right side
    27,680.70x = 565,093,230.57
  5. Step 5: Solve for x
    x = 565,093,230.57/27,680.70
  6. Step 6: Final answer
    x = 20,414.70

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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.