Home / 27,199.80-40,761.45-21,628.44

Finding the Fourth Proportional to 27,199.80, 40,761.45 and 21,628.44

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Solution

The fourth proportional to 27,199.80, 40,761.45 and 21,628.44 is: 32,412.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,199.80 : 40,761.45 = 21,628.44 : x
  2. Step 2: Convert to fraction form
    27,199.80/40,761.45 = 21,628.44/x
  3. Step 3: Cross multiply
    27,199.80x = 40,761.45 × 21,628.44
  4. Step 4: Simplify right side
    27,199.80x = 881,606,575.64
  5. Step 5: Solve for x
    x = 881,606,575.64/27,199.80
  6. Step 6: Final answer
    x = 32,412.24

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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.