Home / 51,028.31-70,413.56-28,368.28

Finding the Fourth Proportional to 51,028.31, 70,413.56 and 28,368.28

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Solution

The fourth proportional to 51,028.31, 70,413.56 and 28,368.28 is: 39,145.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,028.31 : 70,413.56 = 28,368.28 : x
  2. Step 2: Convert to fraction form
    51,028.31/70,413.56 = 28,368.28/x
  3. Step 3: Cross multiply
    51,028.31x = 70,413.56 × 28,368.28
  4. Step 4: Simplify right side
    51,028.31x = 1,997,511,091.97
  5. Step 5: Solve for x
    x = 1,997,511,091.97/51,028.31
  6. Step 6: Final answer
    x = 39,145.15

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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.