Home / 19,961.60-29,954.40-8,273.60

Finding the Fourth Proportional to 19,961.60, 29,954.40 and 8,273.60

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Solution

The fourth proportional to 19,961.60, 29,954.40 and 8,273.60 is: 12,415.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,961.60 : 29,954.40 = 8,273.60 : x
  2. Step 2: Convert to fraction form
    19,961.60/29,954.40 = 8,273.60/x
  3. Step 3: Cross multiply
    19,961.60x = 29,954.40 × 8,273.60
  4. Step 4: Simplify right side
    19,961.60x = 247,830,723.84
  5. Step 5: Solve for x
    x = 247,830,723.84/19,961.60
  6. Step 6: Final answer
    x = 12,415.37

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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.