Home / 30,282.78-41,770.72-19,541.36

Finding the Fourth Proportional to 30,282.78, 41,770.72 and 19,541.36

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Solution

The fourth proportional to 30,282.78, 41,770.72 and 19,541.36 is: 26,954.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,282.78 : 41,770.72 = 19,541.36 : x
  2. Step 2: Convert to fraction form
    30,282.78/41,770.72 = 19,541.36/x
  3. Step 3: Cross multiply
    30,282.78x = 41,770.72 × 19,541.36
  4. Step 4: Simplify right side
    30,282.78x = 816,256,676.98
  5. Step 5: Solve for x
    x = 816,256,676.98/30,282.78
  6. Step 6: Final answer
    x = 26,954.48

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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.