Home / 28,486.98-39,311.82-15,741

Finding the Fourth Proportional to 28,486.98, 39,311.82 and 15,741

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Solution

The fourth proportional to 28,486.98, 39,311.82 and 15,741 is: 21,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,486.98 : 39,311.82 = 15,741 : x
  2. Step 2: Convert to fraction form
    28,486.98/39,311.82 = 15,741/x
  3. Step 3: Cross multiply
    28,486.98x = 39,311.82 × 15,741
  4. Step 4: Simplify right side
    28,486.98x = 618,807,358.62
  5. Step 5: Solve for x
    x = 618,807,358.62/28,486.98
  6. Step 6: Final answer
    x = 21,722.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.