Home / 30,427.52-41,989.78-16,998.67

Finding the Fourth Proportional to 30,427.52, 41,989.78 and 16,998.67

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Solution

The fourth proportional to 30,427.52, 41,989.78 and 16,998.67 is: 23,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,427.52 : 41,989.78 = 16,998.67 : x
  2. Step 2: Convert to fraction form
    30,427.52/41,989.78 = 16,998.67/x
  3. Step 3: Cross multiply
    30,427.52x = 41,989.78 × 16,998.67
  4. Step 4: Simplify right side
    30,427.52x = 713,770,413.59
  5. Step 5: Solve for x
    x = 713,770,413.59/30,427.52
  6. Step 6: Final answer
    x = 23,458.05

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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.