Home / 37,287.65-51,456.96-20,520.65

Finding the Fourth Proportional to 37,287.65, 51,456.96 and 20,520.65

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Solution

The fourth proportional to 37,287.65, 51,456.96 and 20,520.65 is: 28,318.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,287.65 : 51,456.96 = 20,520.65 : x
  2. Step 2: Convert to fraction form
    37,287.65/51,456.96 = 20,520.65/x
  3. Step 3: Cross multiply
    37,287.65x = 51,456.96 × 20,520.65
  4. Step 4: Simplify right side
    37,287.65x = 1,055,929,906.34
  5. Step 5: Solve for x
    x = 1,055,929,906.34/37,287.65
  6. Step 6: Final answer
    x = 28,318.49

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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.