Home / 38,650.98-57,982.98-11,990.82

Finding the Fourth Proportional to 38,650.98, 57,982.98 and 11,990.82

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Solution

The fourth proportional to 38,650.98, 57,982.98 and 11,990.82 is: 17,988.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,650.98 : 57,982.98 = 11,990.82 : x
  2. Step 2: Convert to fraction form
    38,650.98/57,982.98 = 11,990.82/x
  3. Step 3: Cross multiply
    38,650.98x = 57,982.98 × 11,990.82
  4. Step 4: Simplify right side
    38,650.98x = 695,263,476.24
  5. Step 5: Solve for x
    x = 695,263,476.24/38,650.98
  6. Step 6: Final answer
    x = 17,988.25

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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.