Home / 30,729.91-46,112.78-12,959.47

Finding the Fourth Proportional to 30,729.91, 46,112.78 and 12,959.47

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Solution

The fourth proportional to 30,729.91, 46,112.78 and 12,959.47 is: 19,446.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,729.91 : 46,112.78 = 12,959.47 : x
  2. Step 2: Convert to fraction form
    30,729.91/46,112.78 = 12,959.47/x
  3. Step 3: Cross multiply
    30,729.91x = 46,112.78 × 12,959.47
  4. Step 4: Simplify right side
    30,729.91x = 597,597,189.03
  5. Step 5: Solve for x
    x = 597,597,189.03/30,729.91
  6. Step 6: Final answer
    x = 19,446.76

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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.