Home / 30,399.66-41,901.36-20,324.46

Finding the Fourth Proportional to 30,399.66, 41,901.36 and 20,324.46

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Solution

The fourth proportional to 30,399.66, 41,901.36 and 20,324.46 is: 28,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,399.66 : 41,901.36 = 20,324.46 : x
  2. Step 2: Convert to fraction form
    30,399.66/41,901.36 = 20,324.46/x
  3. Step 3: Cross multiply
    30,399.66x = 41,901.36 × 20,324.46
  4. Step 4: Simplify right side
    30,399.66x = 851,622,515.27
  5. Step 5: Solve for x
    x = 851,622,515.27/30,399.66
  6. Step 6: Final answer
    x = 28,014.21

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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.