Home / 33,246.05-45,879.31-18,138.74

Finding the Fourth Proportional to 33,246.05, 45,879.31 and 18,138.74

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Solution

The fourth proportional to 33,246.05, 45,879.31 and 18,138.74 is: 25,031.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,246.05 : 45,879.31 = 18,138.74 : x
  2. Step 2: Convert to fraction form
    33,246.05/45,879.31 = 18,138.74/x
  3. Step 3: Cross multiply
    33,246.05x = 45,879.31 × 18,138.74
  4. Step 4: Simplify right side
    33,246.05x = 832,192,668.75
  5. Step 5: Solve for x
    x = 832,192,668.75/33,246.05
  6. Step 6: Final answer
    x = 25,031.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.