Home / 30,958.94-42,723.35-16,811.79

Finding the Fourth Proportional to 30,958.94, 42,723.35 and 16,811.79

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Solution

The fourth proportional to 30,958.94, 42,723.35 and 16,811.79 is: 23,200.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,958.94 : 42,723.35 = 16,811.79 : x
  2. Step 2: Convert to fraction form
    30,958.94/42,723.35 = 16,811.79/x
  3. Step 3: Cross multiply
    30,958.94x = 42,723.35 × 16,811.79
  4. Step 4: Simplify right side
    30,958.94x = 718,255,807.07
  5. Step 5: Solve for x
    x = 718,255,807.07/30,958.94
  6. Step 6: Final answer
    x = 23,200.27

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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.