Home / 30,629.22-42,269.93-17,199.78

Finding the Fourth Proportional to 30,629.22, 42,269.93 and 17,199.78

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Solution

The fourth proportional to 30,629.22, 42,269.93 and 17,199.78 is: 23,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,629.22 : 42,269.93 = 17,199.78 : x
  2. Step 2: Convert to fraction form
    30,629.22/42,269.93 = 17,199.78/x
  3. Step 3: Cross multiply
    30,629.22x = 42,269.93 × 17,199.78
  4. Step 4: Simplify right side
    30,629.22x = 727,033,496.62
  5. Step 5: Solve for x
    x = 727,033,496.62/30,629.22
  6. Step 6: Final answer
    x = 23,736.60

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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.