Home / 43,413.20-65,097.12-20,019.68

Finding the Fourth Proportional to 43,413.20, 65,097.12 and 20,019.68

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Solution

The fourth proportional to 43,413.20, 65,097.12 and 20,019.68 is: 30,019.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,413.20 : 65,097.12 = 20,019.68 : x
  2. Step 2: Convert to fraction form
    43,413.20/65,097.12 = 20,019.68/x
  3. Step 3: Cross multiply
    43,413.20x = 65,097.12 × 20,019.68
  4. Step 4: Simplify right side
    43,413.20x = 1,303,223,511.32
  5. Step 5: Solve for x
    x = 1,303,223,511.32/43,413.20
  6. Step 6: Final answer
    x = 30,019.06

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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.