Home / 40,918.02-61,245.03-21,169.38

Finding the Fourth Proportional to 40,918.02, 61,245.03 and 21,169.38

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Solution

The fourth proportional to 40,918.02, 61,245.03 and 21,169.38 is: 31,685.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,918.02 : 61,245.03 = 21,169.38 : x
  2. Step 2: Convert to fraction form
    40,918.02/61,245.03 = 21,169.38/x
  3. Step 3: Cross multiply
    40,918.02x = 61,245.03 × 21,169.38
  4. Step 4: Simplify right side
    40,918.02x = 1,296,519,313.18
  5. Step 5: Solve for x
    x = 1,296,519,313.18/40,918.02
  6. Step 6: Final answer
    x = 31,685.78

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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.