Home / 30,808.88-42,516.27-16,661.73

Finding the Fourth Proportional to 30,808.88, 42,516.27 and 16,661.73

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Solution

The fourth proportional to 30,808.88, 42,516.27 and 16,661.73 is: 22,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,808.88 : 42,516.27 = 16,661.73 : x
  2. Step 2: Convert to fraction form
    30,808.88/42,516.27 = 16,661.73/x
  3. Step 3: Cross multiply
    30,808.88x = 42,516.27 × 16,661.73
  4. Step 4: Simplify right side
    30,808.88x = 708,394,611.35
  5. Step 5: Solve for x
    x = 708,394,611.35/30,808.88
  6. Step 6: Final answer
    x = 22,993.20

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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.