Home / 21,961.58-32,942.88-7,921.62

Finding the Fourth Proportional to 21,961.58, 32,942.88 and 7,921.62

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Solution

The fourth proportional to 21,961.58, 32,942.88 and 7,921.62 is: 11,882.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,961.58 : 32,942.88 = 7,921.62 : x
  2. Step 2: Convert to fraction form
    21,961.58/32,942.88 = 7,921.62/x
  3. Step 3: Cross multiply
    21,961.58x = 32,942.88 × 7,921.62
  4. Step 4: Simplify right side
    21,961.58x = 260,960,977.07
  5. Step 5: Solve for x
    x = 260,960,977.07/21,961.58
  6. Step 6: Final answer
    x = 11,882.62

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1.5x scale

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.