Home / 31,413.30-43,360.46-20,113.23

Finding the Fourth Proportional to 31,413.30, 43,360.46 and 20,113.23

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Solution

The fourth proportional to 31,413.30, 43,360.46 and 20,113.23 is: 27,762.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,413.30 : 43,360.46 = 20,113.23 : x
  2. Step 2: Convert to fraction form
    31,413.30/43,360.46 = 20,113.23/x
  3. Step 3: Cross multiply
    31,413.30x = 43,360.46 × 20,113.23
  4. Step 4: Simplify right side
    31,413.30x = 872,118,904.89
  5. Step 5: Solve for x
    x = 872,118,904.89/31,413.30
  6. Step 6: Final answer
    x = 27,762.73

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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.