Home / 30,067.71-45,077.26-12,550.65

Finding the Fourth Proportional to 30,067.71, 45,077.26 and 12,550.65

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Solution

The fourth proportional to 30,067.71, 45,077.26 and 12,550.65 is: 18,815.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,067.71 : 45,077.26 = 12,550.65 : x
  2. Step 2: Convert to fraction form
    30,067.71/45,077.26 = 12,550.65/x
  3. Step 3: Cross multiply
    30,067.71x = 45,077.26 × 12,550.65
  4. Step 4: Simplify right side
    30,067.71x = 565,748,913.22
  5. Step 5: Solve for x
    x = 565,748,913.22/30,067.71
  6. Step 6: Final answer
    x = 18,815.83

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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.