Home / 20,840.49-31,262.46-6,800.25

Finding the Fourth Proportional to 20,840.49, 31,262.46 and 6,800.25

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Solution

The fourth proportional to 20,840.49, 31,262.46 and 6,800.25 is: 10,200.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,840.49 : 31,262.46 = 6,800.25 : x
  2. Step 2: Convert to fraction form
    20,840.49/31,262.46 = 6,800.25/x
  3. Step 3: Cross multiply
    20,840.49x = 31,262.46 × 6,800.25
  4. Step 4: Simplify right side
    20,840.49x = 212,592,635.35
  5. Step 5: Solve for x
    x = 212,592,635.35/20,840.49
  6. Step 6: Final answer
    x = 10,200.94

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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.