Home / 25,629.49-38,413.06-18,135.21

Finding the Fourth Proportional to 25,629.49, 38,413.06 and 18,135.21

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Solution

The fourth proportional to 25,629.49, 38,413.06 and 18,135.21 is: 27,180.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,629.49 : 38,413.06 = 18,135.21 : x
  2. Step 2: Convert to fraction form
    25,629.49/38,413.06 = 18,135.21/x
  3. Step 3: Cross multiply
    25,629.49x = 38,413.06 × 18,135.21
  4. Step 4: Simplify right side
    25,629.49x = 696,628,909.84
  5. Step 5: Solve for x
    x = 696,628,909.84/25,629.49
  6. Step 6: Final answer
    x = 27,180.76

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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.