Home / 25,656.39-38,413.62-13,149.45

Finding the Fourth Proportional to 25,656.39, 38,413.62 and 13,149.45

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Solution

The fourth proportional to 25,656.39, 38,413.62 and 13,149.45 is: 19,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,656.39 : 38,413.62 = 13,149.45 : x
  2. Step 2: Convert to fraction form
    25,656.39/38,413.62 = 13,149.45/x
  3. Step 3: Cross multiply
    25,656.39x = 38,413.62 × 13,149.45
  4. Step 4: Simplify right side
    25,656.39x = 505,117,975.51
  5. Step 5: Solve for x
    x = 505,117,975.51/25,656.39
  6. Step 6: Final answer
    x = 19,687.80

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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.