Home / 18,081.70-27,090.66-15,835.47

Finding the Fourth Proportional to 18,081.70, 27,090.66 and 15,835.47

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Solution

The fourth proportional to 18,081.70, 27,090.66 and 15,835.47 is: 23,725.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,081.70 : 27,090.66 = 15,835.47 : x
  2. Step 2: Convert to fraction form
    18,081.70/27,090.66 = 15,835.47/x
  3. Step 3: Cross multiply
    18,081.70x = 27,090.66 × 15,835.47
  4. Step 4: Simplify right side
    18,081.70x = 428,993,333.71
  5. Step 5: Solve for x
    x = 428,993,333.71/18,081.70
  6. Step 6: Final answer
    x = 23,725.28

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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.