Home / 20,467.96-28,236.59-12,508.69

Finding the Fourth Proportional to 20,467.96, 28,236.59 and 12,508.69

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Solution

The fourth proportional to 20,467.96, 28,236.59 and 12,508.69 is: 17,256.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,467.96 : 28,236.59 = 12,508.69 : x
  2. Step 2: Convert to fraction form
    20,467.96/28,236.59 = 12,508.69/x
  3. Step 3: Cross multiply
    20,467.96x = 28,236.59 × 12,508.69
  4. Step 4: Simplify right side
    20,467.96x = 353,202,750.97
  5. Step 5: Solve for x
    x = 353,202,750.97/20,467.96
  6. Step 6: Final answer
    x = 17,256.37

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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.