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Finding the Fourth Proportional to 27,270.80, 40,906.20 and 14,127.20

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Solution

The fourth proportional to 27,270.80, 40,906.20 and 14,127.20 is: 21,190.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,270.80 : 40,906.20 = 14,127.20 : x
  2. Step 2: Convert to fraction form
    27,270.80/40,906.20 = 14,127.20/x
  3. Step 3: Cross multiply
    27,270.80x = 40,906.20 × 14,127.20
  4. Step 4: Simplify right side
    27,270.80x = 577,890,068.64
  5. Step 5: Solve for x
    x = 577,890,068.64/27,270.80
  6. Step 6: Final answer
    x = 21,190.80

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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.