Home / 22,247.40-33,371.10-20,778.60

Finding the Fourth Proportional to 22,247.40, 33,371.10 and 20,778.60

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Solution

The fourth proportional to 22,247.40, 33,371.10 and 20,778.60 is: 31,167.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,247.40 : 33,371.10 = 20,778.60 : x
  2. Step 2: Convert to fraction form
    22,247.40/33,371.10 = 20,778.60/x
  3. Step 3: Cross multiply
    22,247.40x = 33,371.10 × 20,778.60
  4. Step 4: Simplify right side
    22,247.40x = 693,404,738.46
  5. Step 5: Solve for x
    x = 693,404,738.46/22,247.40
  6. Step 6: Final answer
    x = 31,167.90

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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.