Home / 21,687.21-32,540.13-6,897.33

Finding the Fourth Proportional to 21,687.21, 32,540.13 and 6,897.33

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Solution

The fourth proportional to 21,687.21, 32,540.13 and 6,897.33 is: 10,348.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,687.21 : 32,540.13 = 6,897.33 : x
  2. Step 2: Convert to fraction form
    21,687.21/32,540.13 = 6,897.33/x
  3. Step 3: Cross multiply
    21,687.21x = 32,540.13 × 6,897.33
  4. Step 4: Simplify right side
    21,687.21x = 224,440,014.85
  5. Step 5: Solve for x
    x = 224,440,014.85/21,687.21
  6. Step 6: Final answer
    x = 10,348.96

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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.