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Finding the Fourth Proportional to 27,168.89, 40,754.70 and 9,640.08

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Solution

The fourth proportional to 27,168.89, 40,754.70 and 9,640.08 is: 14,460.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,168.89 : 40,754.70 = 9,640.08 : x
  2. Step 2: Convert to fraction form
    27,168.89/40,754.70 = 9,640.08/x
  3. Step 3: Cross multiply
    27,168.89x = 40,754.70 × 9,640.08
  4. Step 4: Simplify right side
    27,168.89x = 392,878,568.38
  5. Step 5: Solve for x
    x = 392,878,568.38/27,168.89
  6. Step 6: Final answer
    x = 14,460.61

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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.