Home / 31,449.22-47,174.31-8,075.14

Finding the Fourth Proportional to 31,449.22, 47,174.31 and 8,075.14

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Solution

The fourth proportional to 31,449.22, 47,174.31 and 8,075.14 is: 12,112.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,449.22 : 47,174.31 = 8,075.14 : x
  2. Step 2: Convert to fraction form
    31,449.22/47,174.31 = 8,075.14/x
  3. Step 3: Cross multiply
    31,449.22x = 47,174.31 × 8,075.14
  4. Step 4: Simplify right side
    31,449.22x = 380,939,157.65
  5. Step 5: Solve for x
    x = 380,939,157.65/31,449.22
  6. Step 6: Final answer
    x = 12,112.83

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1.5x scale

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.