Home / 21,794.40-32,691.60-7,940.16

Finding the Fourth Proportional to 21,794.40, 32,691.60 and 7,940.16

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Solution

The fourth proportional to 21,794.40, 32,691.60 and 7,940.16 is: 11,910.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,794.40 : 32,691.60 = 7,940.16 : x
  2. Step 2: Convert to fraction form
    21,794.40/32,691.60 = 7,940.16/x
  3. Step 3: Cross multiply
    21,794.40x = 32,691.60 × 7,940.16
  4. Step 4: Simplify right side
    21,794.40x = 259,576,534.66
  5. Step 5: Solve for x
    x = 259,576,534.66/21,794.40
  6. Step 6: Final answer
    x = 11,910.24

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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.