Home / 30,812.25-42,520.92-16,665.09

Finding the Fourth Proportional to 30,812.25, 42,520.92 and 16,665.09

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Solution

The fourth proportional to 30,812.25, 42,520.92 and 16,665.09 is: 22,997.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,812.25 : 42,520.92 = 16,665.09 : x
  2. Step 2: Convert to fraction form
    30,812.25/42,520.92 = 16,665.09/x
  3. Step 3: Cross multiply
    30,812.25x = 42,520.92 × 16,665.09
  4. Step 4: Simplify right side
    30,812.25x = 708,614,958.68
  5. Step 5: Solve for x
    x = 708,614,958.68/30,812.25
  6. Step 6: Final answer
    x = 22,997.83

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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.