Home / 43,413.84-65,119.68-18,447.12

Finding the Fourth Proportional to 43,413.84, 65,119.68 and 18,447.12

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Solution

The fourth proportional to 43,413.84, 65,119.68 and 18,447.12 is: 27,670.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,413.84 : 65,119.68 = 18,447.12 : x
  2. Step 2: Convert to fraction form
    43,413.84/65,119.68 = 18,447.12/x
  3. Step 3: Cross multiply
    43,413.84x = 65,119.68 × 18,447.12
  4. Step 4: Simplify right side
    43,413.84x = 1,201,270,551.32
  5. Step 5: Solve for x
    x = 1,201,270,551.32/43,413.84
  6. Step 6: Final answer
    x = 27,670.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.