Home / 38,486.98-57,732.09-12,191.14

Finding the Fourth Proportional to 38,486.98, 57,732.09 and 12,191.14

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Solution

The fourth proportional to 38,486.98, 57,732.09 and 12,191.14 is: 18,287.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,486.98 : 57,732.09 = 12,191.14 : x
  2. Step 2: Convert to fraction form
    38,486.98/57,732.09 = 12,191.14/x
  3. Step 3: Cross multiply
    38,486.98x = 57,732.09 × 12,191.14
  4. Step 4: Simplify right side
    38,486.98x = 703,819,991.68
  5. Step 5: Solve for x
    x = 703,819,991.68/38,486.98
  6. Step 6: Final answer
    x = 18,287.22

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1.5x scale

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.