Home / 20,736.33-31,116.53-8,727.59

Finding the Fourth Proportional to 20,736.33, 31,116.53 and 8,727.59

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Solution

The fourth proportional to 20,736.33, 31,116.53 and 8,727.59 is: 13,096.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736.33 : 31,116.53 = 8,727.59 : x
  2. Step 2: Convert to fraction form
    20,736.33/31,116.53 = 8,727.59/x
  3. Step 3: Cross multiply
    20,736.33x = 31,116.53 × 8,727.59
  4. Step 4: Simplify right side
    20,736.33x = 271,572,116.84
  5. Step 5: Solve for x
    x = 271,572,116.84/20,736.33
  6. Step 6: Final answer
    x = 13,096.44

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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.