Home / 21,325.26-29,428.79-11,893.82

Finding the Fourth Proportional to 21,325.26, 29,428.79 and 11,893.82

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Solution

The fourth proportional to 21,325.26, 29,428.79 and 11,893.82 is: 16,413.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.26 : 29,428.79 = 11,893.82 : x
  2. Step 2: Convert to fraction form
    21,325.26/29,428.79 = 11,893.82/x
  3. Step 3: Cross multiply
    21,325.26x = 29,428.79 × 11,893.82
  4. Step 4: Simplify right side
    21,325.26x = 350,020,524.46
  5. Step 5: Solve for x
    x = 350,020,524.46/21,325.26
  6. Step 6: Final answer
    x = 16,413.42

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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.