Home / 25,991.22-38,964.96-10,400.34

Finding the Fourth Proportional to 25,991.22, 38,964.96 and 10,400.34

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Solution

The fourth proportional to 25,991.22, 38,964.96 and 10,400.34 is: 15,591.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.22 : 38,964.96 = 10,400.34 : x
  2. Step 2: Convert to fraction form
    25,991.22/38,964.96 = 10,400.34/x
  3. Step 3: Cross multiply
    25,991.22x = 38,964.96 × 10,400.34
  4. Step 4: Simplify right side
    25,991.22x = 405,248,832.09
  5. Step 5: Solve for x
    x = 405,248,832.09/25,991.22
  6. Step 6: Final answer
    x = 15,591.76

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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.