Home / 21,067.25-31,606.08-6,276.11

Finding the Fourth Proportional to 21,067.25, 31,606.08 and 6,276.11

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Solution

The fourth proportional to 21,067.25, 31,606.08 and 6,276.11 is: 9,415.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067.25 : 31,606.08 = 6,276.11 : x
  2. Step 2: Convert to fraction form
    21,067.25/31,606.08 = 6,276.11/x
  3. Step 3: Cross multiply
    21,067.25x = 31,606.08 × 6,276.11
  4. Step 4: Simplify right side
    21,067.25x = 198,363,203.37
  5. Step 5: Solve for x
    x = 198,363,203.37/21,067.25
  6. Step 6: Final answer
    x = 9,415.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.