Home / 20,467.54-28,245.47-11,514.21

Finding the Fourth Proportional to 20,467.54, 28,245.47 and 11,514.21

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Solution

The fourth proportional to 20,467.54, 28,245.47 and 11,514.21 is: 15,889.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467.54 : 28,245.47 = 11,514.21 : x
  2. Step 2: Convert to fraction form
    20,467.54/28,245.47 = 11,514.21/x
  3. Step 3: Cross multiply
    20,467.54x = 28,245.47 × 11,514.21
  4. Step 4: Simplify right side
    20,467.54x = 325,224,273.13
  5. Step 5: Solve for x
    x = 325,224,273.13/20,467.54
  6. Step 6: Final answer
    x = 15,889.76

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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.