Home / 30,408.72-45,413.44-25,918.56

Finding the Fourth Proportional to 30,408.72, 45,413.44 and 25,918.56

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Solution

The fourth proportional to 30,408.72, 45,413.44 and 25,918.56 is: 38,707.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,408.72 : 45,413.44 = 25,918.56 : x
  2. Step 2: Convert to fraction form
    30,408.72/45,413.44 = 25,918.56/x
  3. Step 3: Cross multiply
    30,408.72x = 45,413.44 × 25,918.56
  4. Step 4: Simplify right side
    30,408.72x = 1,177,050,969.45
  5. Step 5: Solve for x
    x = 1,177,050,969.45/30,408.72
  6. Step 6: Final answer
    x = 38,707.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.