Home / 22,268.19-30,728.50-12,195

Finding the Fourth Proportional to 22,268.19, 30,728.50 and 12,195

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Solution

The fourth proportional to 22,268.19, 30,728.50 and 12,195 is: 16,828.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,268.19 : 30,728.50 = 12,195 : x
  2. Step 2: Convert to fraction form
    22,268.19/30,728.50 = 12,195/x
  3. Step 3: Cross multiply
    22,268.19x = 30,728.50 × 12,195
  4. Step 4: Simplify right side
    22,268.19x = 374,733,996.53
  5. Step 5: Solve for x
    x = 374,733,996.53/22,268.19
  6. Step 6: Final answer
    x = 16,828.22

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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.