Home / 27,075.80-40,620.62-10,431.38

Finding the Fourth Proportional to 27,075.80, 40,620.62 and 10,431.38

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Solution

The fourth proportional to 27,075.80, 40,620.62 and 10,431.38 is: 15,649.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,075.80 : 40,620.62 = 10,431.38 : x
  2. Step 2: Convert to fraction form
    27,075.80/40,620.62 = 10,431.38/x
  3. Step 3: Cross multiply
    27,075.80x = 40,620.62 × 10,431.38
  4. Step 4: Simplify right side
    27,075.80x = 423,728,946.03
  5. Step 5: Solve for x
    x = 423,728,946.03/27,075.80
  6. Step 6: Final answer
    x = 15,649.73

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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.