Home / 21,096.61-29,113.91-11,665.51

Finding the Fourth Proportional to 21,096.61, 29,113.91 and 11,665.51

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Solution

The fourth proportional to 21,096.61, 29,113.91 and 11,665.51 is: 16,098.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,096.61 : 29,113.91 = 11,665.51 : x
  2. Step 2: Convert to fraction form
    21,096.61/29,113.91 = 11,665.51/x
  3. Step 3: Cross multiply
    21,096.61x = 29,113.91 × 11,665.51
  4. Step 4: Simplify right side
    21,096.61x = 339,628,608.24
  5. Step 5: Solve for x
    x = 339,628,608.24/21,096.61
  6. Step 6: Final answer
    x = 16,098.73

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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.