Home / 41,121.67-61,673.28-18,913.71

Finding the Fourth Proportional to 41,121.67, 61,673.28 and 18,913.71

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Solution

The fourth proportional to 41,121.67, 61,673.28 and 18,913.71 is: 28,366.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,121.67 : 61,673.28 = 18,913.71 : x
  2. Step 2: Convert to fraction form
    41,121.67/61,673.28 = 18,913.71/x
  3. Step 3: Cross multiply
    41,121.67x = 61,673.28 × 18,913.71
  4. Step 4: Simplify right side
    41,121.67x = 1,166,470,485.38
  5. Step 5: Solve for x
    x = 1,166,470,485.38/41,121.67
  6. Step 6: Final answer
    x = 28,366.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.