Home / 21,213.46-29,274.62-11,782.02

Finding the Fourth Proportional to 21,213.46, 29,274.62 and 11,782.02

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Solution

The fourth proportional to 21,213.46, 29,274.62 and 11,782.02 is: 16,259.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,213.46 : 29,274.62 = 11,782.02 : x
  2. Step 2: Convert to fraction form
    21,213.46/29,274.62 = 11,782.02/x
  3. Step 3: Cross multiply
    21,213.46x = 29,274.62 × 11,782.02
  4. Step 4: Simplify right side
    21,213.46x = 344,914,158.33
  5. Step 5: Solve for x
    x = 344,914,158.33/21,213.46
  6. Step 6: Final answer
    x = 16,259.21

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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.