Home / 25,112.46-37,675.62-20,420.85

Finding the Fourth Proportional to 25,112.46, 37,675.62 and 20,420.85

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Solution

The fourth proportional to 25,112.46, 37,675.62 and 20,420.85 is: 30,636.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,112.46 : 37,675.62 = 20,420.85 : x
  2. Step 2: Convert to fraction form
    25,112.46/37,675.62 = 20,420.85/x
  3. Step 3: Cross multiply
    25,112.46x = 37,675.62 × 20,420.85
  4. Step 4: Simplify right side
    25,112.46x = 769,368,184.68
  5. Step 5: Solve for x
    x = 769,368,184.68/25,112.46
  6. Step 6: Final answer
    x = 30,636.91

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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.