Home / 21,413.96-32,112.60-7,371.32

Finding the Fourth Proportional to 21,413.96, 32,112.60 and 7,371.32

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Solution

The fourth proportional to 21,413.96, 32,112.60 and 7,371.32 is: 11,054.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,413.96 : 32,112.60 = 7,371.32 : x
  2. Step 2: Convert to fraction form
    21,413.96/32,112.60 = 7,371.32/x
  3. Step 3: Cross multiply
    21,413.96x = 32,112.60 × 7,371.32
  4. Step 4: Simplify right side
    21,413.96x = 236,712,250.63
  5. Step 5: Solve for x
    x = 236,712,250.63/21,413.96
  6. Step 6: Final answer
    x = 11,054.11

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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.