Home / 40,724.25-61,030.89-20,961.06

Finding the Fourth Proportional to 40,724.25, 61,030.89 and 20,961.06

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Solution

The fourth proportional to 40,724.25, 61,030.89 and 20,961.06 is: 31,413.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,724.25 : 61,030.89 = 20,961.06 : x
  2. Step 2: Convert to fraction form
    40,724.25/61,030.89 = 20,961.06/x
  3. Step 3: Cross multiply
    40,724.25x = 61,030.89 × 20,961.06
  4. Step 4: Simplify right side
    40,724.25x = 1,279,272,147.14
  5. Step 5: Solve for x
    x = 1,279,272,147.14/40,724.25
  6. Step 6: Final answer
    x = 31,413.03

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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.