Home / 20,239.26-27,914.40-13,167.96

Finding the Fourth Proportional to 20,239.26, 27,914.40 and 13,167.96

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Solution

The fourth proportional to 20,239.26, 27,914.40 and 13,167.96 is: 18,161.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.26 : 27,914.40 = 13,167.96 : x
  2. Step 2: Convert to fraction form
    20,239.26/27,914.40 = 13,167.96/x
  3. Step 3: Cross multiply
    20,239.26x = 27,914.40 × 13,167.96
  4. Step 4: Simplify right side
    20,239.26x = 367,575,702.62
  5. Step 5: Solve for x
    x = 367,575,702.62/20,239.26
  6. Step 6: Final answer
    x = 18,161.52

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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.