Home / 21,366-29,485.26-11,936.52

Finding the Fourth Proportional to 21,366, 29,485.26 and 11,936.52

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Solution

The fourth proportional to 21,366, 29,485.26 and 11,936.52 is: 16,472.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,366 : 29,485.26 = 11,936.52 : x
  2. Step 2: Convert to fraction form
    21,366/29,485.26 = 11,936.52/x
  3. Step 3: Cross multiply
    21,366x = 29,485.26 × 11,936.52
  4. Step 4: Simplify right side
    21,366x = 351,951,395.70
  5. Step 5: Solve for x
    x = 351,951,395.70/21,366
  6. Step 6: Final answer
    x = 16,472.50

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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.