Home / 28,213.68-38,918.80-17,609.44

Finding the Fourth Proportional to 28,213.68, 38,918.80 and 17,609.44

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Solution

The fourth proportional to 28,213.68, 38,918.80 and 17,609.44 is: 24,290.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,213.68 : 38,918.80 = 17,609.44 : x
  2. Step 2: Convert to fraction form
    28,213.68/38,918.80 = 17,609.44/x
  3. Step 3: Cross multiply
    28,213.68x = 38,918.80 × 17,609.44
  4. Step 4: Simplify right side
    28,213.68x = 685,338,273.47
  5. Step 5: Solve for x
    x = 685,338,273.47/28,213.68
  6. Step 6: Final answer
    x = 24,290.99

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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.