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Finding the Fourth Proportional to 15,589.96, 23,403.30 and 12,305.32

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Solution

The fourth proportional to 15,589.96, 23,403.30 and 12,305.32 is: 18,472.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,589.96 : 23,403.30 = 12,305.32 : x
  2. Step 2: Convert to fraction form
    15,589.96/23,403.30 = 12,305.32/x
  3. Step 3: Cross multiply
    15,589.96x = 23,403.30 × 12,305.32
  4. Step 4: Simplify right side
    15,589.96x = 287,985,095.56
  5. Step 5: Solve for x
    x = 287,985,095.56/15,589.96
  6. Step 6: Final answer
    x = 18,472.47

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.