Home / 21,413.87-32,102.34-8,275.46

Finding the Fourth Proportional to 21,413.87, 32,102.34 and 8,275.46

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Solution

The fourth proportional to 21,413.87, 32,102.34 and 8,275.46 is: 12,406.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,413.87 : 32,102.34 = 8,275.46 : x
  2. Step 2: Convert to fraction form
    21,413.87/32,102.34 = 8,275.46/x
  3. Step 3: Cross multiply
    21,413.87x = 32,102.34 × 8,275.46
  4. Step 4: Simplify right side
    21,413.87x = 265,661,470.06
  5. Step 5: Solve for x
    x = 265,661,470.06/21,413.87
  6. Step 6: Final answer
    x = 12,406.05

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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.