Home / 30,736.70-46,116.05-12,971.78

Finding the Fourth Proportional to 30,736.70, 46,116.05 and 12,971.78

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Solution

The fourth proportional to 30,736.70, 46,116.05 and 12,971.78 is: 19,462.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,736.70 : 46,116.05 = 12,971.78 : x
  2. Step 2: Convert to fraction form
    30,736.70/46,116.05 = 12,971.78/x
  3. Step 3: Cross multiply
    30,736.70x = 46,116.05 × 12,971.78
  4. Step 4: Simplify right side
    30,736.70x = 598,206,959.63
  5. Step 5: Solve for x
    x = 598,206,959.63/30,736.70
  6. Step 6: Final answer
    x = 19,462.31

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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.