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Finding the Fourth Proportional to 27,274.80, 40,912.20 and 14,131.20

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Solution

The fourth proportional to 27,274.80, 40,912.20 and 14,131.20 is: 21,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,274.80 : 40,912.20 = 14,131.20 : x
  2. Step 2: Convert to fraction form
    27,274.80/40,912.20 = 14,131.20/x
  3. Step 3: Cross multiply
    27,274.80x = 40,912.20 × 14,131.20
  4. Step 4: Simplify right side
    27,274.80x = 578,138,480.64
  5. Step 5: Solve for x
    x = 578,138,480.64/27,274.80
  6. Step 6: Final answer
    x = 21,196.80

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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.