Home / 39,429.86-54,413.36-21,525.26

Finding the Fourth Proportional to 39,429.86, 54,413.36 and 21,525.26

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Solution

The fourth proportional to 39,429.86, 54,413.36 and 21,525.26 is: 29,704.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,429.86 : 54,413.36 = 21,525.26 : x
  2. Step 2: Convert to fraction form
    39,429.86/54,413.36 = 21,525.26/x
  3. Step 3: Cross multiply
    39,429.86x = 54,413.36 × 21,525.26
  4. Step 4: Simplify right side
    39,429.86x = 1,171,261,721.47
  5. Step 5: Solve for x
    x = 1,171,261,721.47/39,429.86
  6. Step 6: Final answer
    x = 29,704.94

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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.