Home / 19,942.80-29,914.20-9,409.37

Finding the Fourth Proportional to 19,942.80, 29,914.20 and 9,409.37

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Solution

The fourth proportional to 19,942.80, 29,914.20 and 9,409.37 is: 14,114.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,942.80 : 29,914.20 = 9,409.37 : x
  2. Step 2: Convert to fraction form
    19,942.80/29,914.20 = 9,409.37/x
  3. Step 3: Cross multiply
    19,942.80x = 29,914.20 × 9,409.37
  4. Step 4: Simplify right side
    19,942.80x = 281,473,626.48
  5. Step 5: Solve for x
    x = 281,473,626.48/19,942.80
  6. Step 6: Final answer
    x = 14,114.05

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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.