Home / 21,324.66-29,428.07-11,893.83

Finding the Fourth Proportional to 21,324.66, 29,428.07 and 11,893.83

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Solution

The fourth proportional to 21,324.66, 29,428.07 and 11,893.83 is: 16,413.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.66 : 29,428.07 = 11,893.83 : x
  2. Step 2: Convert to fraction form
    21,324.66/29,428.07 = 11,893.83/x
  3. Step 3: Cross multiply
    21,324.66x = 29,428.07 × 11,893.83
  4. Step 4: Simplify right side
    21,324.66x = 350,012,461.81
  5. Step 5: Solve for x
    x = 350,012,461.81/21,324.66
  6. Step 6: Final answer
    x = 16,413.51

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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.