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Finding the Fourth Proportional to 29,509.75, 40,722.96 and 16,081.12

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Solution

The fourth proportional to 29,509.75, 40,722.96 and 16,081.12 is: 22,191.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,509.75 : 40,722.96 = 16,081.12 : x
  2. Step 2: Convert to fraction form
    29,509.75/40,722.96 = 16,081.12/x
  3. Step 3: Cross multiply
    29,509.75x = 40,722.96 × 16,081.12
  4. Step 4: Simplify right side
    29,509.75x = 654,870,806.52
  5. Step 5: Solve for x
    x = 654,870,806.52/29,509.75
  6. Step 6: Final answer
    x = 22,191.68

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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.