Home / 33,940.08-50,890.68-13,139.28

Finding the Fourth Proportional to 33,940.08, 50,890.68 and 13,139.28

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Solution

The fourth proportional to 33,940.08, 50,890.68 and 13,139.28 is: 19,701.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,940.08 : 50,890.68 = 13,139.28 : x
  2. Step 2: Convert to fraction form
    33,940.08/50,890.68 = 13,139.28/x
  3. Step 3: Cross multiply
    33,940.08x = 50,890.68 × 13,139.28
  4. Step 4: Simplify right side
    33,940.08x = 668,666,893.91
  5. Step 5: Solve for x
    x = 668,666,893.91/33,940.08
  6. Step 6: Final answer
    x = 19,701.39

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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.