Home / 29,861.64-41,191.92-18,664.20

Finding the Fourth Proportional to 29,861.64, 41,191.92 and 18,664.20

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Solution

The fourth proportional to 29,861.64, 41,191.92 and 18,664.20 is: 25,745.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,861.64 : 41,191.92 = 18,664.20 : x
  2. Step 2: Convert to fraction form
    29,861.64/41,191.92 = 18,664.20/x
  3. Step 3: Cross multiply
    29,861.64x = 41,191.92 × 18,664.20
  4. Step 4: Simplify right side
    29,861.64x = 768,814,233.26
  5. Step 5: Solve for x
    x = 768,814,233.26/29,861.64
  6. Step 6: Final answer
    x = 25,745.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.