Home / 20,467.12-28,244.43-11,514.68

Finding the Fourth Proportional to 20,467.12, 28,244.43 and 11,514.68

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Solution

The fourth proportional to 20,467.12, 28,244.43 and 11,514.68 is: 15,890.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467.12 : 28,244.43 = 11,514.68 : x
  2. Step 2: Convert to fraction form
    20,467.12/28,244.43 = 11,514.68/x
  3. Step 3: Cross multiply
    20,467.12x = 28,244.43 × 11,514.68
  4. Step 4: Simplify right side
    20,467.12x = 325,225,573.23
  5. Step 5: Solve for x
    x = 325,225,573.23/20,467.12
  6. Step 6: Final answer
    x = 15,890.15

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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.