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Finding the Fourth Proportional to 29,997.60, 44,996.40 and 20,666.40

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Solution

The fourth proportional to 29,997.60, 44,996.40 and 20,666.40 is: 30,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,997.60 : 44,996.40 = 20,666.40 : x
  2. Step 2: Convert to fraction form
    29,997.60/44,996.40 = 20,666.40/x
  3. Step 3: Cross multiply
    29,997.60x = 44,996.40 × 20,666.40
  4. Step 4: Simplify right side
    29,997.60x = 929,913,600.96
  5. Step 5: Solve for x
    x = 929,913,600.96/29,997.60
  6. Step 6: Final answer
    x = 30,999.60

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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.