Home / 34,023.20-51,121.20-30,221.60

Finding the Fourth Proportional to 34,023.20, 51,121.20 and 30,221.60

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Solution

The fourth proportional to 34,023.20, 51,121.20 and 30,221.60 is: 45,409.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,023.20 : 51,121.20 = 30,221.60 : x
  2. Step 2: Convert to fraction form
    34,023.20/51,121.20 = 30,221.60/x
  3. Step 3: Cross multiply
    34,023.20x = 51,121.20 × 30,221.60
  4. Step 4: Simplify right side
    34,023.20x = 1,544,964,457.92
  5. Step 5: Solve for x
    x = 1,544,964,457.92/34,023.20
  6. Step 6: Final answer
    x = 45,409.15

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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.