Home / 20,212.62-30,318.93-6,172.08

Finding the Fourth Proportional to 20,212.62, 30,318.93 and 6,172.08

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Solution

The fourth proportional to 20,212.62, 30,318.93 and 6,172.08 is: 9,258.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,212.62 : 30,318.93 = 6,172.08 : x
  2. Step 2: Convert to fraction form
    20,212.62/30,318.93 = 6,172.08/x
  3. Step 3: Cross multiply
    20,212.62x = 30,318.93 × 6,172.08
  4. Step 4: Simplify right side
    20,212.62x = 187,130,861.47
  5. Step 5: Solve for x
    x = 187,130,861.47/20,212.62
  6. Step 6: Final answer
    x = 9,258.12

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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.