Home / 20,233.36-30,359.67-9,143.44

Finding the Fourth Proportional to 20,233.36, 30,359.67 and 9,143.44

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Solution

The fourth proportional to 20,233.36, 30,359.67 and 9,143.44 is: 13,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,233.36 : 30,359.67 = 9,143.44 : x
  2. Step 2: Convert to fraction form
    20,233.36/30,359.67 = 9,143.44/x
  3. Step 3: Cross multiply
    20,233.36x = 30,359.67 × 9,143.44
  4. Step 4: Simplify right side
    20,233.36x = 277,591,821.06
  5. Step 5: Solve for x
    x = 277,591,821.06/20,233.36
  6. Step 6: Final answer
    x = 13,719.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.