Home / 20,467.55-28,243.21-11,514.86

Finding the Fourth Proportional to 20,467.55, 28,243.21 and 11,514.86

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Solution

The fourth proportional to 20,467.55, 28,243.21 and 11,514.86 is: 15,889.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467.55 : 28,243.21 = 11,514.86 : x
  2. Step 2: Convert to fraction form
    20,467.55/28,243.21 = 11,514.86/x
  3. Step 3: Cross multiply
    20,467.55x = 28,243.21 × 11,514.86
  4. Step 4: Simplify right side
    20,467.55x = 325,216,410.31
  5. Step 5: Solve for x
    x = 325,216,410.31/20,467.55
  6. Step 6: Final answer
    x = 15,889.37

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1.5x scale

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.