Home / 21,027.92-29,018.15-11,467.88

Finding the Fourth Proportional to 21,027.92, 29,018.15 and 11,467.88

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Solution

The fourth proportional to 21,027.92, 29,018.15 and 11,467.88 is: 15,825.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027.92 : 29,018.15 = 11,467.88 : x
  2. Step 2: Convert to fraction form
    21,027.92/29,018.15 = 11,467.88/x
  3. Step 3: Cross multiply
    21,027.92x = 29,018.15 × 11,467.88
  4. Step 4: Simplify right side
    21,027.92x = 332,776,459.59
  5. Step 5: Solve for x
    x = 332,776,459.59/21,027.92
  6. Step 6: Final answer
    x = 15,825.46

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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.