Home / 20,172.21-30,258.98-6,845.07

Finding the Fourth Proportional to 20,172.21, 30,258.98 and 6,845.07

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Solution

The fourth proportional to 20,172.21, 30,258.98 and 6,845.07 is: 10,267.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,172.21 : 30,258.98 = 6,845.07 : x
  2. Step 2: Convert to fraction form
    20,172.21/30,258.98 = 6,845.07/x
  3. Step 3: Cross multiply
    20,172.21x = 30,258.98 × 6,845.07
  4. Step 4: Simplify right side
    20,172.21x = 207,124,836.23
  5. Step 5: Solve for x
    x = 207,124,836.23/20,172.21
  6. Step 6: Final answer
    x = 10,267.83

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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.