Home / 20,423.82-30,618.99-7,268.70

Finding the Fourth Proportional to 20,423.82, 30,618.99 and 7,268.70

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Solution

The fourth proportional to 20,423.82, 30,618.99 and 7,268.70 is: 10,897.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,423.82 : 30,618.99 = 7,268.70 : x
  2. Step 2: Convert to fraction form
    20,423.82/30,618.99 = 7,268.70/x
  3. Step 3: Cross multiply
    20,423.82x = 30,618.99 × 7,268.70
  4. Step 4: Simplify right side
    20,423.82x = 222,560,252.61
  5. Step 5: Solve for x
    x = 222,560,252.61/20,423.82
  6. Step 6: Final answer
    x = 10,897.09

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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.