Home / 21,067.02-31,606.44-9,221.83

Finding the Fourth Proportional to 21,067.02, 31,606.44 and 9,221.83

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Solution

The fourth proportional to 21,067.02, 31,606.44 and 9,221.83 is: 13,835.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,067.02 : 31,606.44 = 9,221.83 : x
  2. Step 2: Convert to fraction form
    21,067.02/31,606.44 = 9,221.83/x
  3. Step 3: Cross multiply
    21,067.02x = 31,606.44 × 9,221.83
  4. Step 4: Simplify right side
    21,067.02x = 291,469,216.59
  5. Step 5: Solve for x
    x = 291,469,216.59/21,067.02
  6. Step 6: Final answer
    x = 13,835.33

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1.5x scale

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.