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Finding the Fourth Proportional to 35,997.60, 53,996.40 and 18,469.20

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Solution

The fourth proportional to 35,997.60, 53,996.40 and 18,469.20 is: 27,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,997.60 : 53,996.40 = 18,469.20 : x
  2. Step 2: Convert to fraction form
    35,997.60/53,996.40 = 18,469.20/x
  3. Step 3: Cross multiply
    35,997.60x = 53,996.40 × 18,469.20
  4. Step 4: Simplify right side
    35,997.60x = 997,270,310.88
  5. Step 5: Solve for x
    x = 997,270,310.88/35,997.60
  6. Step 6: Final answer
    x = 27,703.80

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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.