Home / 21,610.66-29,823.29-12,179.54

Finding the Fourth Proportional to 21,610.66, 29,823.29 and 12,179.54

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Solution

The fourth proportional to 21,610.66, 29,823.29 and 12,179.54 is: 16,808.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,610.66 : 29,823.29 = 12,179.54 : x
  2. Step 2: Convert to fraction form
    21,610.66/29,823.29 = 12,179.54/x
  3. Step 3: Cross multiply
    21,610.66x = 29,823.29 × 12,179.54
  4. Step 4: Simplify right side
    21,610.66x = 363,233,953.49
  5. Step 5: Solve for x
    x = 363,233,953.49/21,610.66
  6. Step 6: Final answer
    x = 16,808.09

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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.