Home / 20,973.25-28,943.19-11,413.23

Finding the Fourth Proportional to 20,973.25, 28,943.19 and 11,413.23

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Solution

The fourth proportional to 20,973.25, 28,943.19 and 11,413.23 is: 15,750.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.25 : 28,943.19 = 11,413.23 : x
  2. Step 2: Convert to fraction form
    20,973.25/28,943.19 = 11,413.23/x
  3. Step 3: Cross multiply
    20,973.25x = 28,943.19 × 11,413.23
  4. Step 4: Simplify right side
    20,973.25x = 330,335,284.40
  5. Step 5: Solve for x
    x = 330,335,284.40/20,973.25
  6. Step 6: Final answer
    x = 15,750.31

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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.