Home / 21,357.36-29,473.20-11,926.26

Finding the Fourth Proportional to 21,357.36, 29,473.20 and 11,926.26

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Solution

The fourth proportional to 21,357.36, 29,473.20 and 11,926.26 is: 16,458.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,357.36 : 29,473.20 = 11,926.26 : x
  2. Step 2: Convert to fraction form
    21,357.36/29,473.20 = 11,926.26/x
  3. Step 3: Cross multiply
    21,357.36x = 29,473.20 × 11,926.26
  4. Step 4: Simplify right side
    21,357.36x = 351,505,046.23
  5. Step 5: Solve for x
    x = 351,505,046.23/21,357.36
  6. Step 6: Final answer
    x = 16,458.26

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1.5x scale

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.