Home / 21,828.26-32,742.80-8,502.14

Finding the Fourth Proportional to 21,828.26, 32,742.80 and 8,502.14

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Solution

The fourth proportional to 21,828.26, 32,742.80 and 8,502.14 is: 12,753.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,828.26 : 32,742.80 = 8,502.14 : x
  2. Step 2: Convert to fraction form
    21,828.26/32,742.80 = 8,502.14/x
  3. Step 3: Cross multiply
    21,828.26x = 32,742.80 × 8,502.14
  4. Step 4: Simplify right side
    21,828.26x = 278,383,869.59
  5. Step 5: Solve for x
    x = 278,383,869.59/21,828.26
  6. Step 6: Final answer
    x = 12,753.37

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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.