Home / 21,380.14-29,497.37-13,836.00

Finding the Fourth Proportional to 21,380.14, 29,497.37 and 13,836.00

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Solution

The fourth proportional to 21,380.14, 29,497.37 and 13,836.00 is: 19,089.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,380.14 : 29,497.37 = 13,836.00 : x
  2. Step 2: Convert to fraction form
    21,380.14/29,497.37 = 13,836.00/x
  3. Step 3: Cross multiply
    21,380.14x = 29,497.37 × 13,836.00
  4. Step 4: Simplify right side
    21,380.14x = 408,125,486.83
  5. Step 5: Solve for x
    x = 408,125,486.83/21,380.14
  6. Step 6: Final answer
    x = 19,089.00

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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.