Home / 37,639.61-51,942.66-20,872.61

Finding the Fourth Proportional to 37,639.61, 51,942.66 and 20,872.61

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Solution

The fourth proportional to 37,639.61, 51,942.66 and 20,872.61 is: 28,804.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,639.61 : 51,942.66 = 20,872.61 : x
  2. Step 2: Convert to fraction form
    37,639.61/51,942.66 = 20,872.61/x
  3. Step 3: Cross multiply
    37,639.61x = 51,942.66 × 20,872.61
  4. Step 4: Simplify right side
    37,639.61x = 1,084,178,624.83
  5. Step 5: Solve for x
    x = 1,084,178,624.83/37,639.61
  6. Step 6: Final answer
    x = 28,804.20

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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.