Home / 28,481.04-39,299.40-17,149.68

Finding the Fourth Proportional to 28,481.04, 39,299.40 and 17,149.68

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Solution

The fourth proportional to 28,481.04, 39,299.40 and 17,149.68 is: 23,663.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,481.04 : 39,299.40 = 17,149.68 : x
  2. Step 2: Convert to fraction form
    28,481.04/39,299.40 = 17,149.68/x
  3. Step 3: Cross multiply
    28,481.04x = 39,299.40 × 17,149.68
  4. Step 4: Simplify right side
    28,481.04x = 673,972,134.19
  5. Step 5: Solve for x
    x = 673,972,134.19/28,481.04
  6. Step 6: Final answer
    x = 23,663.89

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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.