Home / 20,267.48-30,382.66-7,112.68

Finding the Fourth Proportional to 20,267.48, 30,382.66 and 7,112.68

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Solution

The fourth proportional to 20,267.48, 30,382.66 and 7,112.68 is: 10,662.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,267.48 : 30,382.66 = 7,112.68 : x
  2. Step 2: Convert to fraction form
    20,267.48/30,382.66 = 7,112.68/x
  3. Step 3: Cross multiply
    20,267.48x = 30,382.66 × 7,112.68
  4. Step 4: Simplify right side
    20,267.48x = 216,102,138.13
  5. Step 5: Solve for x
    x = 216,102,138.13/20,267.48
  6. Step 6: Final answer
    x = 10,662.51

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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.