Home / 29,276.42-40,385-18,517.96

Finding the Fourth Proportional to 29,276.42, 40,385 and 18,517.96

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Solution

The fourth proportional to 29,276.42, 40,385 and 18,517.96 is: 25,544.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,276.42 : 40,385 = 18,517.96 : x
  2. Step 2: Convert to fraction form
    29,276.42/40,385 = 18,517.96/x
  3. Step 3: Cross multiply
    29,276.42x = 40,385 × 18,517.96
  4. Step 4: Simplify right side
    29,276.42x = 747,847,814.60
  5. Step 5: Solve for x
    x = 747,847,814.60/29,276.42
  6. Step 6: Final answer
    x = 25,544.37

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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.