Home / 36,361.72-54,455.10-20,731.96

Finding the Fourth Proportional to 36,361.72, 54,455.10 and 20,731.96

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Solution

The fourth proportional to 36,361.72, 54,455.10 and 20,731.96 is: 31,048.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,361.72 : 54,455.10 = 20,731.96 : x
  2. Step 2: Convert to fraction form
    36,361.72/54,455.10 = 20,731.96/x
  3. Step 3: Cross multiply
    36,361.72x = 54,455.10 × 20,731.96
  4. Step 4: Simplify right side
    36,361.72x = 1,128,960,955.00
  5. Step 5: Solve for x
    x = 1,128,960,955.00/36,361.72
  6. Step 6: Final answer
    x = 31,048.06

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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.