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Finding the Fourth Proportional to 43,443, 65,165.26 and 17,147.56

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Solution

The fourth proportional to 43,443, 65,165.26 and 17,147.56 is: 25,721.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,443 : 65,165.26 = 17,147.56 : x
  2. Step 2: Convert to fraction form
    43,443/65,165.26 = 17,147.56/x
  3. Step 3: Cross multiply
    43,443x = 65,165.26 × 17,147.56
  4. Step 4: Simplify right side
    43,443x = 1,117,425,205.77
  5. Step 5: Solve for x
    x = 1,117,425,205.77/43,443
  6. Step 6: Final answer
    x = 25,721.64

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Double scale
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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.