Home / 41,131.20-61,696.80-21,448.20

Finding the Fourth Proportional to 41,131.20, 61,696.80 and 21,448.20

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Solution

The fourth proportional to 41,131.20, 61,696.80 and 21,448.20 is: 32,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,131.20 : 61,696.80 = 21,448.20 : x
  2. Step 2: Convert to fraction form
    41,131.20/61,696.80 = 21,448.20/x
  3. Step 3: Cross multiply
    41,131.20x = 61,696.80 × 21,448.20
  4. Step 4: Simplify right side
    41,131.20x = 1,323,285,305.76
  5. Step 5: Solve for x
    x = 1,323,285,305.76/41,131.20
  6. Step 6: Final answer
    x = 32,172.30

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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.