Home / 22,751.43-31,427.64-20,629.37

Finding the Fourth Proportional to 22,751.43, 31,427.64 and 20,629.37

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Solution

The fourth proportional to 22,751.43, 31,427.64 and 20,629.37 is: 28,496.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,751.43 : 31,427.64 = 20,629.37 : x
  2. Step 2: Convert to fraction form
    22,751.43/31,427.64 = 20,629.37/x
  3. Step 3: Cross multiply
    22,751.43x = 31,427.64 × 20,629.37
  4. Step 4: Simplify right side
    22,751.43x = 648,332,413.79
  5. Step 5: Solve for x
    x = 648,332,413.79/22,751.43
  6. Step 6: Final answer
    x = 28,496.34

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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.