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Finding the Fourth Proportional to 32,660.76, 48,993.37 and 12,939.29

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Solution

The fourth proportional to 32,660.76, 48,993.37 and 12,939.29 is: 19,409.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,660.76 : 48,993.37 = 12,939.29 : x
  2. Step 2: Convert to fraction form
    32,660.76/48,993.37 = 12,939.29/x
  3. Step 3: Cross multiply
    32,660.76x = 48,993.37 × 12,939.29
  4. Step 4: Simplify right side
    32,660.76x = 633,939,145.19
  5. Step 5: Solve for x
    x = 633,939,145.19/32,660.76
  6. Step 6: Final answer
    x = 19,409.81

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Why These Related Problems?

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