Home / 20,424.46-30,651.94-15,171.60

Finding the Fourth Proportional to 20,424.46, 30,651.94 and 15,171.60

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Solution

The fourth proportional to 20,424.46, 30,651.94 and 15,171.60 is: 22,768.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.46 : 30,651.94 = 15,171.60 : x
  2. Step 2: Convert to fraction form
    20,424.46/30,651.94 = 15,171.60/x
  3. Step 3: Cross multiply
    20,424.46x = 30,651.94 × 15,171.60
  4. Step 4: Simplify right side
    20,424.46x = 465,038,972.90
  5. Step 5: Solve for x
    x = 465,038,972.90/20,424.46
  6. Step 6: Final answer
    x = 22,768.73

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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.