Home / 22,258.31-30,716.56-12,187.70

Finding the Fourth Proportional to 22,258.31, 30,716.56 and 12,187.70

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Solution

The fourth proportional to 22,258.31, 30,716.56 and 12,187.70 is: 16,819.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,258.31 : 30,716.56 = 12,187.70 : x
  2. Step 2: Convert to fraction form
    22,258.31/30,716.56 = 12,187.70/x
  3. Step 3: Cross multiply
    22,258.31x = 30,716.56 × 12,187.70
  4. Step 4: Simplify right side
    22,258.31x = 374,364,064.73
  5. Step 5: Solve for x
    x = 374,364,064.73/22,258.31
  6. Step 6: Final answer
    x = 16,819.07

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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.