Home / 21,673.30-29,893.11-13,707.83

Finding the Fourth Proportional to 21,673.30, 29,893.11 and 13,707.83

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Solution

The fourth proportional to 21,673.30, 29,893.11 and 13,707.83 is: 18,906.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673.30 : 29,893.11 = 13,707.83 : x
  2. Step 2: Convert to fraction form
    21,673.30/29,893.11 = 13,707.83/x
  3. Step 3: Cross multiply
    21,673.30x = 29,893.11 × 13,707.83
  4. Step 4: Simplify right side
    21,673.30x = 409,769,670.05
  5. Step 5: Solve for x
    x = 409,769,670.05/21,673.30
  6. Step 6: Final answer
    x = 18,906.66

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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.