Home / 21,761.33-32,656.58-13,975.61

Finding the Fourth Proportional to 21,761.33, 32,656.58 and 13,975.61

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Solution

The fourth proportional to 21,761.33, 32,656.58 and 13,975.61 is: 20,972.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,761.33 : 32,656.58 = 13,975.61 : x
  2. Step 2: Convert to fraction form
    21,761.33/32,656.58 = 13,975.61/x
  3. Step 3: Cross multiply
    21,761.33x = 32,656.58 × 13,975.61
  4. Step 4: Simplify right side
    21,761.33x = 456,395,556.14
  5. Step 5: Solve for x
    x = 456,395,556.14/21,761.33
  6. Step 6: Final answer
    x = 20,972.78

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1.5x scale

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.