Home / 30,600.30-42,228.12-17,171.54

Finding the Fourth Proportional to 30,600.30, 42,228.12 and 17,171.54

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Solution

The fourth proportional to 30,600.30, 42,228.12 and 17,171.54 is: 23,696.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,600.30 : 42,228.12 = 17,171.54 : x
  2. Step 2: Convert to fraction form
    30,600.30/42,228.12 = 17,171.54/x
  3. Step 3: Cross multiply
    30,600.30x = 42,228.12 × 17,171.54
  4. Step 4: Simplify right side
    30,600.30x = 725,121,851.70
  5. Step 5: Solve for x
    x = 725,121,851.70/30,600.30
  6. Step 6: Final answer
    x = 23,696.56

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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.