Home / 21,325.50-29,429.19-11,894.07

Finding the Fourth Proportional to 21,325.50, 29,429.19 and 11,894.07

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Solution

The fourth proportional to 21,325.50, 29,429.19 and 11,894.07 is: 16,413.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.50 : 29,429.19 = 11,894.07 : x
  2. Step 2: Convert to fraction form
    21,325.50/29,429.19 = 11,894.07/x
  3. Step 3: Cross multiply
    21,325.50x = 29,429.19 × 11,894.07
  4. Step 4: Simplify right side
    21,325.50x = 350,032,845.90
  5. Step 5: Solve for x
    x = 350,032,845.90/21,325.50
  6. Step 6: Final answer
    x = 16,413.82

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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.