Home / 37,619.48-51,912.02-20,621

Finding the Fourth Proportional to 37,619.48, 51,912.02 and 20,621

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Solution

The fourth proportional to 37,619.48, 51,912.02 and 20,621 is: 28,455.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,619.48 : 51,912.02 = 20,621 : x
  2. Step 2: Convert to fraction form
    37,619.48/51,912.02 = 20,621/x
  3. Step 3: Cross multiply
    37,619.48x = 51,912.02 × 20,621
  4. Step 4: Simplify right side
    37,619.48x = 1,070,477,764.42
  5. Step 5: Solve for x
    x = 1,070,477,764.42/37,619.48
  6. Step 6: Final answer
    x = 28,455.41

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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.