Home / 21,239.28-31,846.62-7,194.60

Finding the Fourth Proportional to 21,239.28, 31,846.62 and 7,194.60

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Solution

The fourth proportional to 21,239.28, 31,846.62 and 7,194.60 is: 10,787.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,239.28 : 31,846.62 = 7,194.60 : x
  2. Step 2: Convert to fraction form
    21,239.28/31,846.62 = 7,194.60/x
  3. Step 3: Cross multiply
    21,239.28x = 31,846.62 × 7,194.60
  4. Step 4: Simplify right side
    21,239.28x = 229,123,692.25
  5. Step 5: Solve for x
    x = 229,123,692.25/21,239.28
  6. Step 6: Final answer
    x = 10,787.73

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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.