Home / 21,606.60-29,808.34-13,227.96

Finding the Fourth Proportional to 21,606.60, 29,808.34 and 13,227.96

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Solution

The fourth proportional to 21,606.60, 29,808.34 and 13,227.96 is: 18,249.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,606.60 : 29,808.34 = 13,227.96 : x
  2. Step 2: Convert to fraction form
    21,606.60/29,808.34 = 13,227.96/x
  3. Step 3: Cross multiply
    21,606.60x = 29,808.34 × 13,227.96
  4. Step 4: Simplify right side
    21,606.60x = 394,303,529.19
  5. Step 5: Solve for x
    x = 394,303,529.19/21,606.60
  6. Step 6: Final answer
    x = 18,249.22

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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.