Home / 39,413.09-54,391.23-21,509.26

Finding the Fourth Proportional to 39,413.09, 54,391.23 and 21,509.26

Calculator

Solution

The fourth proportional to 39,413.09, 54,391.23 and 21,509.26 is: 29,683.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,413.09 : 54,391.23 = 21,509.26 : x
  2. Step 2: Convert to fraction form
    39,413.09/54,391.23 = 21,509.26/x
  3. Step 3: Cross multiply
    39,413.09x = 54,391.23 × 21,509.26
  4. Step 4: Simplify right side
    39,413.09x = 1,169,914,971.81
  5. Step 5: Solve for x
    x = 1,169,914,971.81/39,413.09
  6. Step 6: Final answer
    x = 29,683.41

Related Problems

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.