Home / 20,351.66-30,501.97-11,591.51

Finding the Fourth Proportional to 20,351.66, 30,501.97 and 11,591.51

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Solution

The fourth proportional to 20,351.66, 30,501.97 and 11,591.51 is: 17,372.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,351.66 : 30,501.97 = 11,591.51 : x
  2. Step 2: Convert to fraction form
    20,351.66/30,501.97 = 11,591.51/x
  3. Step 3: Cross multiply
    20,351.66x = 30,501.97 × 11,591.51
  4. Step 4: Simplify right side
    20,351.66x = 353,563,708.79
  5. Step 5: Solve for x
    x = 353,563,708.79/20,351.66
  6. Step 6: Final answer
    x = 17,372.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.