Home / 21,984.40-32,984.70-8,846.20

Finding the Fourth Proportional to 21,984.40, 32,984.70 and 8,846.20

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Solution

The fourth proportional to 21,984.40, 32,984.70 and 8,846.20 is: 13,272.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,984.40 : 32,984.70 = 8,846.20 : x
  2. Step 2: Convert to fraction form
    21,984.40/32,984.70 = 8,846.20/x
  3. Step 3: Cross multiply
    21,984.40x = 32,984.70 × 8,846.20
  4. Step 4: Simplify right side
    21,984.40x = 291,789,253.14
  5. Step 5: Solve for x
    x = 291,789,253.14/21,984.40
  6. Step 6: Final answer
    x = 13,272.56

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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.