Home / 30,649.73-42,286.46-17,219.12

Finding the Fourth Proportional to 30,649.73, 42,286.46 and 17,219.12

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Solution

The fourth proportional to 30,649.73, 42,286.46 and 17,219.12 is: 23,756.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,649.73 : 42,286.46 = 17,219.12 : x
  2. Step 2: Convert to fraction form
    30,649.73/42,286.46 = 17,219.12/x
  3. Step 3: Cross multiply
    30,649.73x = 42,286.46 × 17,219.12
  4. Step 4: Simplify right side
    30,649.73x = 728,135,331.59
  5. Step 5: Solve for x
    x = 728,135,331.59/30,649.73
  6. Step 6: Final answer
    x = 23,756.67

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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.