Home / 21,049.31-29,047.90-11,617.87

Finding the Fourth Proportional to 21,049.31, 29,047.90 and 11,617.87

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Solution

The fourth proportional to 21,049.31, 29,047.90 and 11,617.87 is: 16,032.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,049.31 : 29,047.90 = 11,617.87 : x
  2. Step 2: Convert to fraction form
    21,049.31/29,047.90 = 11,617.87/x
  3. Step 3: Cross multiply
    21,049.31x = 29,047.90 × 11,617.87
  4. Step 4: Simplify right side
    21,049.31x = 337,474,522.64
  5. Step 5: Solve for x
    x = 337,474,522.64/21,049.31
  6. Step 6: Final answer
    x = 16,032.57

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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.