Home / 20,400.92-30,601.37-7,253.81

Finding the Fourth Proportional to 20,400.92, 30,601.37 and 7,253.81

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Solution

The fourth proportional to 20,400.92, 30,601.37 and 7,253.81 is: 10,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400.92 : 30,601.37 = 7,253.81 : x
  2. Step 2: Convert to fraction form
    20,400.92/30,601.37 = 7,253.81/x
  3. Step 3: Cross multiply
    20,400.92x = 30,601.37 × 7,253.81
  4. Step 4: Simplify right side
    20,400.92x = 221,976,334.44
  5. Step 5: Solve for x
    x = 221,976,334.44/20,400.92
  6. Step 6: Final answer
    x = 10,880.70

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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.