Home / 21,449.03-29,595.42-13,486.62

Finding the Fourth Proportional to 21,449.03, 29,595.42 and 13,486.62

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Solution

The fourth proportional to 21,449.03, 29,595.42 and 13,486.62 is: 18,608.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,449.03 : 29,595.42 = 13,486.62 : x
  2. Step 2: Convert to fraction form
    21,449.03/29,595.42 = 13,486.62/x
  3. Step 3: Cross multiply
    21,449.03x = 29,595.42 × 13,486.62
  4. Step 4: Simplify right side
    21,449.03x = 399,142,183.28
  5. Step 5: Solve for x
    x = 399,142,183.28/21,449.03
  6. Step 6: Final answer
    x = 18,608.87

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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.