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Finding the Fourth Proportional to 43,997.60, 65,938.80 and 17,680.80

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Solution

The fourth proportional to 43,997.60, 65,938.80 and 17,680.80 is: 26,498.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,997.60 : 65,938.80 = 17,680.80 : x
  2. Step 2: Convert to fraction form
    43,997.60/65,938.80 = 17,680.80/x
  3. Step 3: Cross multiply
    43,997.60x = 65,938.80 × 17,680.80
  4. Step 4: Simplify right side
    43,997.60x = 1,165,850,735.04
  5. Step 5: Solve for x
    x = 1,165,850,735.04/43,997.60
  6. Step 6: Final answer
    x = 26,498.05

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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.