Home / 30,413.63-45,633.09-12,648.18

Finding the Fourth Proportional to 30,413.63, 45,633.09 and 12,648.18

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Solution

The fourth proportional to 30,413.63, 45,633.09 and 12,648.18 is: 18,977.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,413.63 : 45,633.09 = 12,648.18 : x
  2. Step 2: Convert to fraction form
    30,413.63/45,633.09 = 12,648.18/x
  3. Step 3: Cross multiply
    30,413.63x = 45,633.09 × 12,648.18
  4. Step 4: Simplify right side
    30,413.63x = 577,175,683.68
  5. Step 5: Solve for x
    x = 577,175,683.68/30,413.63
  6. Step 6: Final answer
    x = 18,977.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.