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Finding the Fourth Proportional to 30,157.37, 41,589.90 and 18,827.90

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Solution

The fourth proportional to 30,157.37, 41,589.90 and 18,827.90 is: 25,965.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,157.37 : 41,589.90 = 18,827.90 : x
  2. Step 2: Convert to fraction form
    30,157.37/41,589.90 = 18,827.90/x
  3. Step 3: Cross multiply
    30,157.37x = 41,589.90 × 18,827.90
  4. Step 4: Simplify right side
    30,157.37x = 783,050,270.26
  5. Step 5: Solve for x
    x = 783,050,270.26/30,157.37
  6. Step 6: Final answer
    x = 25,965.47

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