Home / 21,533.98-29,716.20-11,973.82

Finding the Fourth Proportional to 21,533.98, 29,716.20 and 11,973.82

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Solution

The fourth proportional to 21,533.98, 29,716.20 and 11,973.82 is: 16,523.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,533.98 : 29,716.20 = 11,973.82 : x
  2. Step 2: Convert to fraction form
    21,533.98/29,716.20 = 11,973.82/x
  3. Step 3: Cross multiply
    21,533.98x = 29,716.20 × 11,973.82
  4. Step 4: Simplify right side
    21,533.98x = 355,816,429.88
  5. Step 5: Solve for x
    x = 355,816,429.88/21,533.98
  6. Step 6: Final answer
    x = 16,523.49

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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.