Home / 22,202.56-30,638.76-12,772.60

Finding the Fourth Proportional to 22,202.56, 30,638.76 and 12,772.60

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Solution

The fourth proportional to 22,202.56, 30,638.76 and 12,772.60 is: 17,625.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,202.56 : 30,638.76 = 12,772.60 : x
  2. Step 2: Convert to fraction form
    22,202.56/30,638.76 = 12,772.60/x
  3. Step 3: Cross multiply
    22,202.56x = 30,638.76 × 12,772.60
  4. Step 4: Simplify right side
    22,202.56x = 391,336,625.98
  5. Step 5: Solve for x
    x = 391,336,625.98/22,202.56
  6. Step 6: Final answer
    x = 17,625.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.