Home / 31,413.89-43,353.65-17,989.37

Finding the Fourth Proportional to 31,413.89, 43,353.65 and 17,989.37

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Solution

The fourth proportional to 31,413.89, 43,353.65 and 17,989.37 is: 24,826.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,413.89 : 43,353.65 = 17,989.37 : x
  2. Step 2: Convert to fraction form
    31,413.89/43,353.65 = 17,989.37/x
  3. Step 3: Cross multiply
    31,413.89x = 43,353.65 × 17,989.37
  4. Step 4: Simplify right side
    31,413.89x = 779,904,760.75
  5. Step 5: Solve for x
    x = 779,904,760.75/31,413.89
  6. Step 6: Final answer
    x = 24,826.75

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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.