Home / 37,405.75-51,621.02-20,639.83

Finding the Fourth Proportional to 37,405.75, 51,621.02 and 20,639.83

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Solution

The fourth proportional to 37,405.75, 51,621.02 and 20,639.83 is: 28,483.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,405.75 : 51,621.02 = 20,639.83 : x
  2. Step 2: Convert to fraction form
    37,405.75/51,621.02 = 20,639.83/x
  3. Step 3: Cross multiply
    37,405.75x = 51,621.02 × 20,639.83
  4. Step 4: Simplify right side
    37,405.75x = 1,065,448,974.03
  5. Step 5: Solve for x
    x = 1,065,448,974.03/37,405.75
  6. Step 6: Final answer
    x = 28,483.56

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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.