Home / 21,984.81-32,968.89-7,941.03

Finding the Fourth Proportional to 21,984.81, 32,968.89 and 7,941.03

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Solution

The fourth proportional to 21,984.81, 32,968.89 and 7,941.03 is: 11,908.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,984.81 : 32,968.89 = 7,941.03 : x
  2. Step 2: Convert to fraction form
    21,984.81/32,968.89 = 7,941.03/x
  3. Step 3: Cross multiply
    21,984.81x = 32,968.89 × 7,941.03
  4. Step 4: Simplify right side
    21,984.81x = 261,806,944.56
  5. Step 5: Solve for x
    x = 261,806,944.56/21,984.81
  6. Step 6: Final answer
    x = 11,908.54

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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.