Home / 30,942.38-42,701.44-18,193.26

Finding the Fourth Proportional to 30,942.38, 42,701.44 and 18,193.26

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Solution

The fourth proportional to 30,942.38, 42,701.44 and 18,193.26 is: 25,107.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,942.38 : 42,701.44 = 18,193.26 : x
  2. Step 2: Convert to fraction form
    30,942.38/42,701.44 = 18,193.26/x
  3. Step 3: Cross multiply
    30,942.38x = 42,701.44 × 18,193.26
  4. Step 4: Simplify right side
    30,942.38x = 776,878,400.29
  5. Step 5: Solve for x
    x = 776,878,400.29/30,942.38
  6. Step 6: Final answer
    x = 25,107.26

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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.