Home / 20,072.82-27,701.52-12,114.93

Finding the Fourth Proportional to 20,072.82, 27,701.52 and 12,114.93

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Solution

The fourth proportional to 20,072.82, 27,701.52 and 12,114.93 is: 16,719.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.82 : 27,701.52 = 12,114.93 : x
  2. Step 2: Convert to fraction form
    20,072.82/27,701.52 = 12,114.93/x
  3. Step 3: Cross multiply
    20,072.82x = 27,701.52 × 12,114.93
  4. Step 4: Simplify right side
    20,072.82x = 335,601,975.69
  5. Step 5: Solve for x
    x = 335,601,975.69/20,072.82
  6. Step 6: Final answer
    x = 16,719.22

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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.