Home / 22,637.76-31,236.72-13,204.56

Finding the Fourth Proportional to 22,637.76, 31,236.72 and 13,204.56

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Solution

The fourth proportional to 22,637.76, 31,236.72 and 13,204.56 is: 18,220.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,637.76 : 31,236.72 = 13,204.56 : x
  2. Step 2: Convert to fraction form
    22,637.76/31,236.72 = 13,204.56/x
  3. Step 3: Cross multiply
    22,637.76x = 31,236.72 × 13,204.56
  4. Step 4: Simplify right side
    22,637.76x = 412,467,143.44
  5. Step 5: Solve for x
    x = 412,467,143.44/22,637.76
  6. Step 6: Final answer
    x = 18,220.32

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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.