Home / 21,789.09-32,687.88-6,996.87

Finding the Fourth Proportional to 21,789.09, 32,687.88 and 6,996.87

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Solution

The fourth proportional to 21,789.09, 32,687.88 and 6,996.87 is: 10,496.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789.09 : 32,687.88 = 6,996.87 : x
  2. Step 2: Convert to fraction form
    21,789.09/32,687.88 = 6,996.87/x
  3. Step 3: Cross multiply
    21,789.09x = 32,687.88 × 6,996.87
  4. Step 4: Simplify right side
    21,789.09x = 228,712,846.94
  5. Step 5: Solve for x
    x = 228,712,846.94/21,789.09
  6. Step 6: Final answer
    x = 10,496.67

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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.