Home / 21,895.22-30,214.94-12,335.60

Finding the Fourth Proportional to 21,895.22, 30,214.94 and 12,335.60

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Solution

The fourth proportional to 21,895.22, 30,214.94 and 12,335.60 is: 17,022.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.22 : 30,214.94 = 12,335.60 : x
  2. Step 2: Convert to fraction form
    21,895.22/30,214.94 = 12,335.60/x
  3. Step 3: Cross multiply
    21,895.22x = 30,214.94 × 12,335.60
  4. Step 4: Simplify right side
    21,895.22x = 372,719,413.86
  5. Step 5: Solve for x
    x = 372,719,413.86/21,895.22
  6. Step 6: Final answer
    x = 17,022.87

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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.