Home / 30,992.62-42,769.88-16,845.43

Finding the Fourth Proportional to 30,992.62, 42,769.88 and 16,845.43

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Solution

The fourth proportional to 30,992.62, 42,769.88 and 16,845.43 is: 23,246.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,992.62 : 42,769.88 = 16,845.43 : x
  2. Step 2: Convert to fraction form
    30,992.62/42,769.88 = 16,845.43/x
  3. Step 3: Cross multiply
    30,992.62x = 42,769.88 × 16,845.43
  4. Step 4: Simplify right side
    30,992.62x = 720,476,935.42
  5. Step 5: Solve for x
    x = 720,476,935.42/30,992.62
  6. Step 6: Final answer
    x = 23,246.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.