Home / 21,584.39-32,363.60-8,442.95

Finding the Fourth Proportional to 21,584.39, 32,363.60 and 8,442.95

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Solution

The fourth proportional to 21,584.39, 32,363.60 and 8,442.95 is: 12,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,584.39 : 32,363.60 = 8,442.95 : x
  2. Step 2: Convert to fraction form
    21,584.39/32,363.60 = 8,442.95/x
  3. Step 3: Cross multiply
    21,584.39x = 32,363.60 × 8,442.95
  4. Step 4: Simplify right side
    21,584.39x = 273,244,214.41
  5. Step 5: Solve for x
    x = 273,244,214.41/21,584.39
  6. Step 6: Final answer
    x = 12,659.34

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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.