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Finding the Fourth Proportional to 17,998.60, 26,997.90 and 16,443.40

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Solution

The fourth proportional to 17,998.60, 26,997.90 and 16,443.40 is: 24,665.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,998.60 : 26,997.90 = 16,443.40 : x
  2. Step 2: Convert to fraction form
    17,998.60/26,997.90 = 16,443.40/x
  3. Step 3: Cross multiply
    17,998.60x = 26,997.90 × 16,443.40
  4. Step 4: Simplify right side
    17,998.60x = 443,937,268.86
  5. Step 5: Solve for x
    x = 443,937,268.86/17,998.60
  6. Step 6: Final answer
    x = 24,665.10

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Similar ratio
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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.