Home / 22,260.12-30,719.82-12,187.92

Finding the Fourth Proportional to 22,260.12, 30,719.82 and 12,187.92

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Solution

The fourth proportional to 22,260.12, 30,719.82 and 12,187.92 is: 16,819.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,260.12 : 30,719.82 = 12,187.92 : x
  2. Step 2: Convert to fraction form
    22,260.12/30,719.82 = 12,187.92/x
  3. Step 3: Cross multiply
    22,260.12x = 30,719.82 × 12,187.92
  4. Step 4: Simplify right side
    22,260.12x = 374,410,708.57
  5. Step 5: Solve for x
    x = 374,410,708.57/22,260.12
  6. Step 6: Final answer
    x = 16,819.80

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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.