Home / 30,629.84-42,270.13-17,201.38

Finding the Fourth Proportional to 30,629.84, 42,270.13 and 17,201.38

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Solution

The fourth proportional to 30,629.84, 42,270.13 and 17,201.38 is: 23,738.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,629.84 : 42,270.13 = 17,201.38 : x
  2. Step 2: Convert to fraction form
    30,629.84/42,270.13 = 17,201.38/x
  3. Step 3: Cross multiply
    30,629.84x = 42,270.13 × 17,201.38
  4. Step 4: Simplify right side
    30,629.84x = 727,104,738.39
  5. Step 5: Solve for x
    x = 727,104,738.39/30,629.84
  6. Step 6: Final answer
    x = 23,738.44

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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.