Home / 20,522.46-30,771.39-9,971.71

Finding the Fourth Proportional to 20,522.46, 30,771.39 and 9,971.71

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Solution

The fourth proportional to 20,522.46, 30,771.39 and 9,971.71 is: 14,951.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522.46 : 30,771.39 = 9,971.71 : x
  2. Step 2: Convert to fraction form
    20,522.46/30,771.39 = 9,971.71/x
  3. Step 3: Cross multiply
    20,522.46x = 30,771.39 × 9,971.71
  4. Step 4: Simplify right side
    20,522.46x = 306,843,337.84
  5. Step 5: Solve for x
    x = 306,843,337.84/20,522.46
  6. Step 6: Final answer
    x = 14,951.58

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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.