Home / 31,413.41-43,360.61-20,113.34

Finding the Fourth Proportional to 31,413.41, 43,360.61 and 20,113.34

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Solution

The fourth proportional to 31,413.41, 43,360.61 and 20,113.34 is: 27,762.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,413.41 : 43,360.61 = 20,113.34 : x
  2. Step 2: Convert to fraction form
    31,413.41/43,360.61 = 20,113.34/x
  3. Step 3: Cross multiply
    31,413.41x = 43,360.61 × 20,113.34
  4. Step 4: Simplify right side
    31,413.41x = 872,126,850.22
  5. Step 5: Solve for x
    x = 872,126,850.22/31,413.41
  6. Step 6: Final answer
    x = 27,762.88

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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.