Home / 20,923.88-31,390.44-6,888.23

Finding the Fourth Proportional to 20,923.88, 31,390.44 and 6,888.23

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Solution

The fourth proportional to 20,923.88, 31,390.44 and 6,888.23 is: 10,333.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.88 : 31,390.44 = 6,888.23 : x
  2. Step 2: Convert to fraction form
    20,923.88/31,390.44 = 6,888.23/x
  3. Step 3: Cross multiply
    20,923.88x = 31,390.44 × 6,888.23
  4. Step 4: Simplify right side
    20,923.88x = 216,224,413.57
  5. Step 5: Solve for x
    x = 216,224,413.57/20,923.88
  6. Step 6: Final answer
    x = 10,333.86

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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.