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Finding the Fourth Proportional to 21,739.72, 32,609.82 and 6,157.48

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Solution

The fourth proportional to 21,739.72, 32,609.82 and 6,157.48 is: 9,236.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,739.72 : 32,609.82 = 6,157.48 : x
  2. Step 2: Convert to fraction form
    21,739.72/32,609.82 = 6,157.48/x
  3. Step 3: Cross multiply
    21,739.72x = 32,609.82 × 6,157.48
  4. Step 4: Simplify right side
    21,739.72x = 200,794,314.45
  5. Step 5: Solve for x
    x = 200,794,314.45/21,739.72
  6. Step 6: Final answer
    x = 9,236.29

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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.