Home / 31,458.87-43,413.03-17,311.68

Finding the Fourth Proportional to 31,458.87, 43,413.03 and 17,311.68

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Solution

The fourth proportional to 31,458.87, 43,413.03 and 17,311.68 is: 23,890.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,458.87 : 43,413.03 = 17,311.68 : x
  2. Step 2: Convert to fraction form
    31,458.87/43,413.03 = 17,311.68/x
  3. Step 3: Cross multiply
    31,458.87x = 43,413.03 × 17,311.68
  4. Step 4: Simplify right side
    31,458.87x = 751,552,483.19
  5. Step 5: Solve for x
    x = 751,552,483.19/31,458.87
  6. Step 6: Final answer
    x = 23,890.00

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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.