Home / 21,984.40-32,976.60-19,651.60

Finding the Fourth Proportional to 21,984.40, 32,976.60 and 19,651.60

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Solution

The fourth proportional to 21,984.40, 32,976.60 and 19,651.60 is: 29,477.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,984.40 : 32,976.60 = 19,651.60 : x
  2. Step 2: Convert to fraction form
    21,984.40/32,976.60 = 19,651.60/x
  3. Step 3: Cross multiply
    21,984.40x = 32,976.60 × 19,651.60
  4. Step 4: Simplify right side
    21,984.40x = 648,042,952.56
  5. Step 5: Solve for x
    x = 648,042,952.56/21,984.40
  6. Step 6: Final answer
    x = 29,477.40

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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.