Home / 21,789.84-32,682.86-13,471.14

Finding the Fourth Proportional to 21,789.84, 32,682.86 and 13,471.14

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Solution

The fourth proportional to 21,789.84, 32,682.86 and 13,471.14 is: 20,205.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789.84 : 32,682.86 = 13,471.14 : x
  2. Step 2: Convert to fraction form
    21,789.84/32,682.86 = 13,471.14/x
  3. Step 3: Cross multiply
    21,789.84x = 32,682.86 × 13,471.14
  4. Step 4: Simplify right side
    21,789.84x = 440,275,382.66
  5. Step 5: Solve for x
    x = 440,275,382.66/21,789.84
  6. Step 6: Final answer
    x = 20,205.54

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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.