Home / 21,984.21-32,983.30-7,189.76

Finding the Fourth Proportional to 21,984.21, 32,983.30 and 7,189.76

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Solution

The fourth proportional to 21,984.21, 32,983.30 and 7,189.76 is: 10,786.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,984.21 : 32,983.30 = 7,189.76 : x
  2. Step 2: Convert to fraction form
    21,984.21/32,983.30 = 7,189.76/x
  3. Step 3: Cross multiply
    21,984.21x = 32,983.30 × 7,189.76
  4. Step 4: Simplify right side
    21,984.21x = 237,142,102.45
  5. Step 5: Solve for x
    x = 237,142,102.45/21,984.21
  6. Step 6: Final answer
    x = 10,786.93

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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.