Home / 21,230.16-29,296.53-11,799.42

Finding the Fourth Proportional to 21,230.16, 29,296.53 and 11,799.42

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Solution

The fourth proportional to 21,230.16, 29,296.53 and 11,799.42 is: 16,282.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,230.16 : 29,296.53 = 11,799.42 : x
  2. Step 2: Convert to fraction form
    21,230.16/29,296.53 = 11,799.42/x
  3. Step 3: Cross multiply
    21,230.16x = 29,296.53 × 11,799.42
  4. Step 4: Simplify right side
    21,230.16x = 345,682,062.01
  5. Step 5: Solve for x
    x = 345,682,062.01/21,230.16
  6. Step 6: Final answer
    x = 16,282.59

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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.