Home / 38,980.26-58,479-18,192.42

Finding the Fourth Proportional to 38,980.26, 58,479 and 18,192.42

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Solution

The fourth proportional to 38,980.26, 58,479 and 18,192.42 is: 27,292.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,980.26 : 58,479 = 18,192.42 : x
  2. Step 2: Convert to fraction form
    38,980.26/58,479 = 18,192.42/x
  3. Step 3: Cross multiply
    38,980.26x = 58,479 × 18,192.42
  4. Step 4: Simplify right side
    38,980.26x = 1,063,874,529.18
  5. Step 5: Solve for x
    x = 1,063,874,529.18/38,980.26
  6. Step 6: Final answer
    x = 27,292.65

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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.