Home / 30,255.69-45,383.54-9,195.91

Finding the Fourth Proportional to 30,255.69, 45,383.54 and 9,195.91

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Solution

The fourth proportional to 30,255.69, 45,383.54 and 9,195.91 is: 13,793.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,255.69 : 45,383.54 = 9,195.91 : x
  2. Step 2: Convert to fraction form
    30,255.69/45,383.54 = 9,195.91/x
  3. Step 3: Cross multiply
    30,255.69x = 45,383.54 × 9,195.91
  4. Step 4: Simplify right side
    30,255.69x = 417,342,789.88
  5. Step 5: Solve for x
    x = 417,342,789.88/30,255.69
  6. Step 6: Final answer
    x = 13,793.86

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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.