Home / 37,980.90-52,413.35-20,986.25

Finding the Fourth Proportional to 37,980.90, 52,413.35 and 20,986.25

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Solution

The fourth proportional to 37,980.90, 52,413.35 and 20,986.25 is: 28,960.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,980.90 : 52,413.35 = 20,986.25 : x
  2. Step 2: Convert to fraction form
    37,980.90/52,413.35 = 20,986.25/x
  3. Step 3: Cross multiply
    37,980.90x = 52,413.35 × 20,986.25
  4. Step 4: Simplify right side
    37,980.90x = 1,099,959,299.44
  5. Step 5: Solve for x
    x = 1,099,959,299.44/37,980.90
  6. Step 6: Final answer
    x = 28,960.85

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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.