Home / 20,225.64-30,330.26-7,074.92

Finding the Fourth Proportional to 20,225.64, 30,330.26 and 7,074.92

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Solution

The fourth proportional to 20,225.64, 30,330.26 and 7,074.92 is: 10,609.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.64 : 30,330.26 = 7,074.92 : x
  2. Step 2: Convert to fraction form
    20,225.64/30,330.26 = 7,074.92/x
  3. Step 3: Cross multiply
    20,225.64x = 30,330.26 × 7,074.92
  4. Step 4: Simplify right side
    20,225.64x = 214,584,163.08
  5. Step 5: Solve for x
    x = 214,584,163.08/20,225.64
  6. Step 6: Final answer
    x = 10,609.51

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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.