Home / 21,380.66-32,062.79-7,338.07

Finding the Fourth Proportional to 21,380.66, 32,062.79 and 7,338.07

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Solution

The fourth proportional to 21,380.66, 32,062.79 and 7,338.07 is: 11,004.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,380.66 : 32,062.79 = 7,338.07 : x
  2. Step 2: Convert to fraction form
    21,380.66/32,062.79 = 7,338.07/x
  3. Step 3: Cross multiply
    21,380.66x = 32,062.79 × 7,338.07
  4. Step 4: Simplify right side
    21,380.66x = 235,278,924.39
  5. Step 5: Solve for x
    x = 235,278,924.39/21,380.66
  6. Step 6: Final answer
    x = 11,004.29

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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.