Home / 27,075.87-40,620.74-10,431.43

Finding the Fourth Proportional to 27,075.87, 40,620.74 and 10,431.43

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Solution

The fourth proportional to 27,075.87, 40,620.74 and 10,431.43 is: 15,649.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,075.87 : 40,620.74 = 10,431.43 : x
  2. Step 2: Convert to fraction form
    27,075.87/40,620.74 = 10,431.43/x
  3. Step 3: Cross multiply
    27,075.87x = 40,620.74 × 10,431.43
  4. Step 4: Simplify right side
    27,075.87x = 423,732,252.15
  5. Step 5: Solve for x
    x = 423,732,252.15/27,075.87
  6. Step 6: Final answer
    x = 15,649.81

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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.