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Finding the Fourth Proportional to 27,213.40, 40,805.94 and 9,680.68

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Solution

The fourth proportional to 27,213.40, 40,805.94 and 9,680.68 is: 14,515.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,213.40 : 40,805.94 = 9,680.68 : x
  2. Step 2: Convert to fraction form
    27,213.40/40,805.94 = 9,680.68/x
  3. Step 3: Cross multiply
    27,213.40x = 40,805.94 × 9,680.68
  4. Step 4: Simplify right side
    27,213.40x = 395,029,247.24
  5. Step 5: Solve for x
    x = 395,029,247.24/27,213.40
  6. Step 6: Final answer
    x = 14,515.98

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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.