Home / 20,072.96-27,700.35-11,574.42

Finding the Fourth Proportional to 20,072.96, 27,700.35 and 11,574.42

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Solution

The fourth proportional to 20,072.96, 27,700.35 and 11,574.42 is: 15,972.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,072.96 : 27,700.35 = 11,574.42 : x
  2. Step 2: Convert to fraction form
    20,072.96/27,700.35 = 11,574.42/x
  3. Step 3: Cross multiply
    20,072.96x = 27,700.35 × 11,574.42
  4. Step 4: Simplify right side
    20,072.96x = 320,615,485.05
  5. Step 5: Solve for x
    x = 320,615,485.05/20,072.96
  6. Step 6: Final answer
    x = 15,972.51

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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.