Home / 20,848.49-31,273.65-6,808.41

Finding the Fourth Proportional to 20,848.49, 31,273.65 and 6,808.41

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Solution

The fourth proportional to 20,848.49, 31,273.65 and 6,808.41 is: 10,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848.49 : 31,273.65 = 6,808.41 : x
  2. Step 2: Convert to fraction form
    20,848.49/31,273.65 = 6,808.41/x
  3. Step 3: Cross multiply
    20,848.49x = 31,273.65 × 6,808.41
  4. Step 4: Simplify right side
    20,848.49x = 212,923,831.40
  5. Step 5: Solve for x
    x = 212,923,831.40/20,848.49
  6. Step 6: Final answer
    x = 10,212.91

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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.