Home / 26,413.60-39,610.80-13,261.60

Finding the Fourth Proportional to 26,413.60, 39,610.80 and 13,261.60

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Solution

The fourth proportional to 26,413.60, 39,610.80 and 13,261.60 is: 19,887.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,413.60 : 39,610.80 = 13,261.60 : x
  2. Step 2: Convert to fraction form
    26,413.60/39,610.80 = 13,261.60/x
  3. Step 3: Cross multiply
    26,413.60x = 39,610.80 × 13,261.60
  4. Step 4: Simplify right side
    26,413.60x = 525,302,585.28
  5. Step 5: Solve for x
    x = 525,302,585.28/26,413.60
  6. Step 6: Final answer
    x = 19,887.58

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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.