Home / 40,790.81-61,217.40-19,743.23

Finding the Fourth Proportional to 40,790.81, 61,217.40 and 19,743.23

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Solution

The fourth proportional to 40,790.81, 61,217.40 and 19,743.23 is: 29,629.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,790.81 : 61,217.40 = 19,743.23 : x
  2. Step 2: Convert to fraction form
    40,790.81/61,217.40 = 19,743.23/x
  3. Step 3: Cross multiply
    40,790.81x = 61,217.40 × 19,743.23
  4. Step 4: Simplify right side
    40,790.81x = 1,208,628,902.12
  5. Step 5: Solve for x
    x = 1,208,628,902.12/40,790.81
  6. Step 6: Final answer
    x = 29,629.94

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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.