Home / 20,898.68-28,840.62-11,467.23

Finding the Fourth Proportional to 20,898.68, 28,840.62 and 11,467.23

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Solution

The fourth proportional to 20,898.68, 28,840.62 and 11,467.23 is: 15,825.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,898.68 : 28,840.62 = 11,467.23 : x
  2. Step 2: Convert to fraction form
    20,898.68/28,840.62 = 11,467.23/x
  3. Step 3: Cross multiply
    20,898.68x = 28,840.62 × 11,467.23
  4. Step 4: Simplify right side
    20,898.68x = 330,722,022.88
  5. Step 5: Solve for x
    x = 330,722,022.88/20,898.68
  6. Step 6: Final answer
    x = 15,825.02

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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.