Home / 37,287.12-51,456.24-20,520

Finding the Fourth Proportional to 37,287.12, 51,456.24 and 20,520

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Solution

The fourth proportional to 37,287.12, 51,456.24 and 20,520 is: 28,317.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,287.12 : 51,456.24 = 20,520 : x
  2. Step 2: Convert to fraction form
    37,287.12/51,456.24 = 20,520/x
  3. Step 3: Cross multiply
    37,287.12x = 51,456.24 × 20,520
  4. Step 4: Simplify right side
    37,287.12x = 1,055,882,044.80
  5. Step 5: Solve for x
    x = 1,055,882,044.80/37,287.12
  6. Step 6: Final answer
    x = 28,317.61

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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.