Home / 21,370.64-29,481.22-13,819.26

Finding the Fourth Proportional to 21,370.64, 29,481.22 and 13,819.26

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Solution

The fourth proportional to 21,370.64, 29,481.22 and 13,819.26 is: 19,063.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,370.64 : 29,481.22 = 13,819.26 : x
  2. Step 2: Convert to fraction form
    21,370.64/29,481.22 = 13,819.26/x
  3. Step 3: Cross multiply
    21,370.64x = 29,481.22 × 13,819.26
  4. Step 4: Simplify right side
    21,370.64x = 407,408,528.56
  5. Step 5: Solve for x
    x = 407,408,528.56/21,370.64
  6. Step 6: Final answer
    x = 19,063.94

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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.