Home / 21,974.40-32,972.40-10,285.60

Finding the Fourth Proportional to 21,974.40, 32,972.40 and 10,285.60

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Solution

The fourth proportional to 21,974.40, 32,972.40 and 10,285.60 is: 15,433.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,974.40 : 32,972.40 = 10,285.60 : x
  2. Step 2: Convert to fraction form
    21,974.40/32,972.40 = 10,285.60/x
  3. Step 3: Cross multiply
    21,974.40x = 32,972.40 × 10,285.60
  4. Step 4: Simplify right side
    21,974.40x = 339,140,917.44
  5. Step 5: Solve for x
    x = 339,140,917.44/21,974.40
  6. Step 6: Final answer
    x = 15,433.46

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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.