Home / 30,939.24-42,694.92-16,791.84

Finding the Fourth Proportional to 30,939.24, 42,694.92 and 16,791.84

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Solution

The fourth proportional to 30,939.24, 42,694.92 and 16,791.84 is: 23,172.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,939.24 : 42,694.92 = 16,791.84 : x
  2. Step 2: Convert to fraction form
    30,939.24/42,694.92 = 16,791.84/x
  3. Step 3: Cross multiply
    30,939.24x = 42,694.92 × 16,791.84
  4. Step 4: Simplify right side
    30,939.24x = 716,926,265.45
  5. Step 5: Solve for x
    x = 716,926,265.45/30,939.24
  6. Step 6: Final answer
    x = 23,172.07

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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.