Home / 20,351.92-30,529.10-6,313.28

Finding the Fourth Proportional to 20,351.92, 30,529.10 and 6,313.28

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Solution

The fourth proportional to 20,351.92, 30,529.10 and 6,313.28 is: 9,470.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,351.92 : 30,529.10 = 6,313.28 : x
  2. Step 2: Convert to fraction form
    20,351.92/30,529.10 = 6,313.28/x
  3. Step 3: Cross multiply
    20,351.92x = 30,529.10 × 6,313.28
  4. Step 4: Simplify right side
    20,351.92x = 192,738,756.45
  5. Step 5: Solve for x
    x = 192,738,756.45/20,351.92
  6. Step 6: Final answer
    x = 9,470.30

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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.