Home / 21,338.42-29,448.29-11,907.59

Finding the Fourth Proportional to 21,338.42, 29,448.29 and 11,907.59

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Solution

The fourth proportional to 21,338.42, 29,448.29 and 11,907.59 is: 16,433.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,338.42 : 29,448.29 = 11,907.59 : x
  2. Step 2: Convert to fraction form
    21,338.42/29,448.29 = 11,907.59/x
  3. Step 3: Cross multiply
    21,338.42x = 29,448.29 × 11,907.59
  4. Step 4: Simplify right side
    21,338.42x = 350,658,046.05
  5. Step 5: Solve for x
    x = 350,658,046.05/21,338.42
  6. Step 6: Final answer
    x = 16,433.18

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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.