Home / 18,134.72-27,148.62-17,687.60

Finding the Fourth Proportional to 18,134.72, 27,148.62 and 17,687.60

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Solution

The fourth proportional to 18,134.72, 27,148.62 and 17,687.60 is: 26,479.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,134.72 : 27,148.62 = 17,687.60 : x
  2. Step 2: Convert to fraction form
    18,134.72/27,148.62 = 17,687.60/x
  3. Step 3: Cross multiply
    18,134.72x = 27,148.62 × 17,687.60
  4. Step 4: Simplify right side
    18,134.72x = 480,193,931.11
  5. Step 5: Solve for x
    x = 480,193,931.11/18,134.72
  6. Step 6: Final answer
    x = 26,479.26

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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.