Home / 20,941.65-31,413.65-6,711.36

Finding the Fourth Proportional to 20,941.65, 31,413.65 and 6,711.36

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Solution

The fourth proportional to 20,941.65, 31,413.65 and 6,711.36 is: 10,067.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.65 : 31,413.65 = 6,711.36 : x
  2. Step 2: Convert to fraction form
    20,941.65/31,413.65 = 6,711.36/x
  3. Step 3: Cross multiply
    20,941.65x = 31,413.65 × 6,711.36
  4. Step 4: Simplify right side
    20,941.65x = 210,828,280.51
  5. Step 5: Solve for x
    x = 210,828,280.51/20,941.65
  6. Step 6: Final answer
    x = 10,067.42

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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.