Home / 30,571.80-42,186.84-16,958.82

Finding the Fourth Proportional to 30,571.80, 42,186.84 and 16,958.82

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Solution

The fourth proportional to 30,571.80, 42,186.84 and 16,958.82 is: 23,401.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,571.80 : 42,186.84 = 16,958.82 : x
  2. Step 2: Convert to fraction form
    30,571.80/42,186.84 = 16,958.82/x
  3. Step 3: Cross multiply
    30,571.80x = 42,186.84 × 16,958.82
  4. Step 4: Simplify right side
    30,571.80x = 715,439,025.93
  5. Step 5: Solve for x
    x = 715,439,025.93/30,571.80
  6. Step 6: Final answer
    x = 23,401.93

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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.