Home / 20,072.25-27,701.60-11,574.54

Finding the Fourth Proportional to 20,072.25, 27,701.60 and 11,574.54

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Solution

The fourth proportional to 20,072.25, 27,701.60 and 11,574.54 is: 15,973.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.25 : 27,701.60 = 11,574.54 : x
  2. Step 2: Convert to fraction form
    20,072.25/27,701.60 = 11,574.54/x
  3. Step 3: Cross multiply
    20,072.25x = 27,701.60 × 11,574.54
  4. Step 4: Simplify right side
    20,072.25x = 320,633,219.39
  5. Step 5: Solve for x
    x = 320,633,219.39/20,072.25
  6. Step 6: Final answer
    x = 15,973.96

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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.