Home / 20,097.79-30,146.68-6,942.98

Finding the Fourth Proportional to 20,097.79, 30,146.68 and 6,942.98

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Solution

The fourth proportional to 20,097.79, 30,146.68 and 6,942.98 is: 10,414.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,097.79 : 30,146.68 = 6,942.98 : x
  2. Step 2: Convert to fraction form
    20,097.79/30,146.68 = 6,942.98/x
  3. Step 3: Cross multiply
    20,097.79x = 30,146.68 × 6,942.98
  4. Step 4: Simplify right side
    20,097.79x = 209,307,796.31
  5. Step 5: Solve for x
    x = 209,307,796.31/20,097.79
  6. Step 6: Final answer
    x = 10,414.47

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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.