Home / 30,764.70-46,146.92-8,578.08

Finding the Fourth Proportional to 30,764.70, 46,146.92 and 8,578.08

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Solution

The fourth proportional to 30,764.70, 46,146.92 and 8,578.08 is: 12,867.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,764.70 : 46,146.92 = 8,578.08 : x
  2. Step 2: Convert to fraction form
    30,764.70/46,146.92 = 8,578.08/x
  3. Step 3: Cross multiply
    30,764.70x = 46,146.92 × 8,578.08
  4. Step 4: Simplify right side
    30,764.70x = 395,851,928.62
  5. Step 5: Solve for x
    x = 395,851,928.62/30,764.70
  6. Step 6: Final answer
    x = 12,867.08

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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.