Home / 21,195.68-31,797.63-8,057.30

Finding the Fourth Proportional to 21,195.68, 31,797.63 and 8,057.30

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Solution

The fourth proportional to 21,195.68, 31,797.63 and 8,057.30 is: 12,087.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.68 : 31,797.63 = 8,057.30 : x
  2. Step 2: Convert to fraction form
    21,195.68/31,797.63 = 8,057.30/x
  3. Step 3: Cross multiply
    21,195.68x = 31,797.63 × 8,057.30
  4. Step 4: Simplify right side
    21,195.68x = 256,202,885.21
  5. Step 5: Solve for x
    x = 256,202,885.21/21,195.68
  6. Step 6: Final answer
    x = 12,087.51

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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.