Home / 22,202.48-30,645.60-12,774.08

Finding the Fourth Proportional to 22,202.48, 30,645.60 and 12,774.08

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Solution

The fourth proportional to 22,202.48, 30,645.60 and 12,774.08 is: 17,631.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,202.48 : 30,645.60 = 12,774.08 : x
  2. Step 2: Convert to fraction form
    22,202.48/30,645.60 = 12,774.08/x
  3. Step 3: Cross multiply
    22,202.48x = 30,645.60 × 12,774.08
  4. Step 4: Simplify right side
    22,202.48x = 391,469,346.05
  5. Step 5: Solve for x
    x = 391,469,346.05/22,202.48
  6. Step 6: Final answer
    x = 17,631.78

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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.