Home / 30,743.39-42,427.94-17,133.54

Finding the Fourth Proportional to 30,743.39, 42,427.94 and 17,133.54

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Solution

The fourth proportional to 30,743.39, 42,427.94 and 17,133.54 is: 23,645.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,743.39 : 42,427.94 = 17,133.54 : x
  2. Step 2: Convert to fraction form
    30,743.39/42,427.94 = 17,133.54/x
  3. Step 3: Cross multiply
    30,743.39x = 42,427.94 × 17,133.54
  4. Step 4: Simplify right side
    30,743.39x = 726,940,807.11
  5. Step 5: Solve for x
    x = 726,940,807.11/30,743.39
  6. Step 6: Final answer
    x = 23,645.43

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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.