Home / 30,938.27-42,694.83-16,791.11

Finding the Fourth Proportional to 30,938.27, 42,694.83 and 16,791.11

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Solution

The fourth proportional to 30,938.27, 42,694.83 and 16,791.11 is: 23,171.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,938.27 : 42,694.83 = 16,791.11 : x
  2. Step 2: Convert to fraction form
    30,938.27/42,694.83 = 16,791.11/x
  3. Step 3: Cross multiply
    30,938.27x = 42,694.83 × 16,791.11
  4. Step 4: Simplify right side
    30,938.27x = 716,893,586.96
  5. Step 5: Solve for x
    x = 716,893,586.96/30,938.27
  6. Step 6: Final answer
    x = 23,171.74

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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.