Home / 20,834.58-31,243.46-7,684.03

Finding the Fourth Proportional to 20,834.58, 31,243.46 and 7,684.03

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Solution

The fourth proportional to 20,834.58, 31,243.46 and 7,684.03 is: 11,522.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,834.58 : 31,243.46 = 7,684.03 : x
  2. Step 2: Convert to fraction form
    20,834.58/31,243.46 = 7,684.03/x
  3. Step 3: Cross multiply
    20,834.58x = 31,243.46 × 7,684.03
  4. Step 4: Simplify right side
    20,834.58x = 240,075,527.73
  5. Step 5: Solve for x
    x = 240,075,527.73/20,834.58
  6. Step 6: Final answer
    x = 11,522.94

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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.