Home / 15,972.12-23,921.73-13,629.60

Finding the Fourth Proportional to 15,972.12, 23,921.73 and 13,629.60

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Solution

The fourth proportional to 15,972.12, 23,921.73 and 13,629.60 is: 20,413.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,972.12 : 23,921.73 = 13,629.60 : x
  2. Step 2: Convert to fraction form
    15,972.12/23,921.73 = 13,629.60/x
  3. Step 3: Cross multiply
    15,972.12x = 23,921.73 × 13,629.60
  4. Step 4: Simplify right side
    15,972.12x = 326,043,611.21
  5. Step 5: Solve for x
    x = 326,043,611.21/15,972.12
  6. Step 6: Final answer
    x = 20,413.30

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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.