Home / 30,604.19-45,906.48-8,419.91

Finding the Fourth Proportional to 30,604.19, 45,906.48 and 8,419.91

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Solution

The fourth proportional to 30,604.19, 45,906.48 and 8,419.91 is: 12,629.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,604.19 : 45,906.48 = 8,419.91 : x
  2. Step 2: Convert to fraction form
    30,604.19/45,906.48 = 8,419.91/x
  3. Step 3: Cross multiply
    30,604.19x = 45,906.48 × 8,419.91
  4. Step 4: Simplify right side
    30,604.19x = 386,528,200.48
  5. Step 5: Solve for x
    x = 386,528,200.48/30,604.19
  6. Step 6: Final answer
    x = 12,629.91

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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.