Home / 36,912.17-55,362.34-13,215.32

Finding the Fourth Proportional to 36,912.17, 55,362.34 and 13,215.32

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Solution

The fourth proportional to 36,912.17, 55,362.34 and 13,215.32 is: 19,820.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,912.17 : 55,362.34 = 13,215.32 : x
  2. Step 2: Convert to fraction form
    36,912.17/55,362.34 = 13,215.32/x
  3. Step 3: Cross multiply
    36,912.17x = 55,362.34 × 13,215.32
  4. Step 4: Simplify right side
    36,912.17x = 731,630,912.03
  5. Step 5: Solve for x
    x = 731,630,912.03/36,912.17
  6. Step 6: Final answer
    x = 19,820.86

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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.