Home / 22,258.15-30,716.10-12,186.75

Finding the Fourth Proportional to 22,258.15, 30,716.10 and 12,186.75

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Solution

The fourth proportional to 22,258.15, 30,716.10 and 12,186.75 is: 16,817.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,258.15 : 30,716.10 = 12,186.75 : x
  2. Step 2: Convert to fraction form
    22,258.15/30,716.10 = 12,186.75/x
  3. Step 3: Cross multiply
    22,258.15x = 30,716.10 × 12,186.75
  4. Step 4: Simplify right side
    22,258.15x = 374,329,431.68
  5. Step 5: Solve for x
    x = 374,329,431.68/22,258.15
  6. Step 6: Final answer
    x = 16,817.63

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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.