Home / 37,053.72-51,121.44-21,126.72

Finding the Fourth Proportional to 37,053.72, 51,121.44 and 21,126.72

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Solution

The fourth proportional to 37,053.72, 51,121.44 and 21,126.72 is: 29,147.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,053.72 : 51,121.44 = 21,126.72 : x
  2. Step 2: Convert to fraction form
    37,053.72/51,121.44 = 21,126.72/x
  3. Step 3: Cross multiply
    37,053.72x = 51,121.44 × 21,126.72
  4. Step 4: Simplify right side
    37,053.72x = 1,080,028,348.88
  5. Step 5: Solve for x
    x = 1,080,028,348.88/37,053.72
  6. Step 6: Final answer
    x = 29,147.64

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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.