Home / 21,313.94-29,413.62-11,881.48

Finding the Fourth Proportional to 21,313.94, 29,413.62 and 11,881.48

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Solution

The fourth proportional to 21,313.94, 29,413.62 and 11,881.48 is: 16,396.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.94 : 29,413.62 = 11,881.48 : x
  2. Step 2: Convert to fraction form
    21,313.94/29,413.62 = 11,881.48/x
  3. Step 3: Cross multiply
    21,313.94x = 29,413.62 × 11,881.48
  4. Step 4: Simplify right side
    21,313.94x = 349,477,337.76
  5. Step 5: Solve for x
    x = 349,477,337.76/21,313.94
  6. Step 6: Final answer
    x = 16,396.66

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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.