Home / 40,946.49-61,305.68-20,912.60

Finding the Fourth Proportional to 40,946.49, 61,305.68 and 20,912.60

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Solution

The fourth proportional to 40,946.49, 61,305.68 and 20,912.60 is: 31,310.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,946.49 : 61,305.68 = 20,912.60 : x
  2. Step 2: Convert to fraction form
    40,946.49/61,305.68 = 20,912.60/x
  3. Step 3: Cross multiply
    40,946.49x = 61,305.68 × 20,912.60
  4. Step 4: Simplify right side
    40,946.49x = 1,282,061,369.11
  5. Step 5: Solve for x
    x = 1,282,061,369.11/40,946.49
  6. Step 6: Final answer
    x = 31,310.65

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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.