Home / 20,941.21-28,898.13-11,982.37

Finding the Fourth Proportional to 20,941.21, 28,898.13 and 11,982.37

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Solution

The fourth proportional to 20,941.21, 28,898.13 and 11,982.37 is: 16,535.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.21 : 28,898.13 = 11,982.37 : x
  2. Step 2: Convert to fraction form
    20,941.21/28,898.13 = 11,982.37/x
  3. Step 3: Cross multiply
    20,941.21x = 28,898.13 × 11,982.37
  4. Step 4: Simplify right side
    20,941.21x = 346,268,021.65
  5. Step 5: Solve for x
    x = 346,268,021.65/20,941.21
  6. Step 6: Final answer
    x = 16,535.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.