Home / 20,448.54-30,674.55-5,657.46

Finding the Fourth Proportional to 20,448.54, 30,674.55 and 5,657.46

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Solution

The fourth proportional to 20,448.54, 30,674.55 and 5,657.46 is: 8,486.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,448.54 : 30,674.55 = 5,657.46 : x
  2. Step 2: Convert to fraction form
    20,448.54/30,674.55 = 5,657.46/x
  3. Step 3: Cross multiply
    20,448.54x = 30,674.55 × 5,657.46
  4. Step 4: Simplify right side
    20,448.54x = 173,540,039.64
  5. Step 5: Solve for x
    x = 173,540,039.64/20,448.54
  6. Step 6: Final answer
    x = 8,486.67

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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.