Home / 21,455.82-29,609.03-12,027.42

Finding the Fourth Proportional to 21,455.82, 29,609.03 and 12,027.42

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Solution

The fourth proportional to 21,455.82, 29,609.03 and 12,027.42 is: 16,597.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,455.82 : 29,609.03 = 12,027.42 : x
  2. Step 2: Convert to fraction form
    21,455.82/29,609.03 = 12,027.42/x
  3. Step 3: Cross multiply
    21,455.82x = 29,609.03 × 12,027.42
  4. Step 4: Simplify right side
    21,455.82x = 356,120,179.47
  5. Step 5: Solve for x
    x = 356,120,179.47/21,455.82
  6. Step 6: Final answer
    x = 16,597.84

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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.