Home / 21,313.82-29,413.14-12,366.62

Finding the Fourth Proportional to 21,313.82, 29,413.14 and 12,366.62

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Solution

The fourth proportional to 21,313.82, 29,413.14 and 12,366.62 is: 17,065.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.82 : 29,413.14 = 12,366.62 : x
  2. Step 2: Convert to fraction form
    21,313.82/29,413.14 = 12,366.62/x
  3. Step 3: Cross multiply
    21,313.82x = 29,413.14 × 12,366.62
  4. Step 4: Simplify right side
    21,313.82x = 363,741,125.39
  5. Step 5: Solve for x
    x = 363,741,125.39/21,313.82
  6. Step 6: Final answer
    x = 17,065.98

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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.