Home / 18,161.89-25,077.41-14,640.82

Finding the Fourth Proportional to 18,161.89, 25,077.41 and 14,640.82

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Solution

The fourth proportional to 18,161.89, 25,077.41 and 14,640.82 is: 20,215.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.89 : 25,077.41 = 14,640.82 : x
  2. Step 2: Convert to fraction form
    18,161.89/25,077.41 = 14,640.82/x
  3. Step 3: Cross multiply
    18,161.89x = 25,077.41 × 14,640.82
  4. Step 4: Simplify right side
    18,161.89x = 367,153,845.88
  5. Step 5: Solve for x
    x = 367,153,845.88/18,161.89
  6. Step 6: Final answer
    x = 20,215.62

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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.