Home / 20,192.76-30,286.98-7,045.38

Finding the Fourth Proportional to 20,192.76, 30,286.98 and 7,045.38

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Solution

The fourth proportional to 20,192.76, 30,286.98 and 7,045.38 is: 10,567.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,192.76 : 30,286.98 = 7,045.38 : x
  2. Step 2: Convert to fraction form
    20,192.76/30,286.98 = 7,045.38/x
  3. Step 3: Cross multiply
    20,192.76x = 30,286.98 × 7,045.38
  4. Step 4: Simplify right side
    20,192.76x = 213,383,283.15
  5. Step 5: Solve for x
    x = 213,383,283.15/20,192.76
  6. Step 6: Final answer
    x = 10,567.32

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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.