Home / 20,797.38-31,199.85-9,553.41

Finding the Fourth Proportional to 20,797.38, 31,199.85 and 9,553.41

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Solution

The fourth proportional to 20,797.38, 31,199.85 and 9,553.41 is: 14,331.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,797.38 : 31,199.85 = 9,553.41 : x
  2. Step 2: Convert to fraction form
    20,797.38/31,199.85 = 9,553.41/x
  3. Step 3: Cross multiply
    20,797.38x = 31,199.85 × 9,553.41
  4. Step 4: Simplify right side
    20,797.38x = 298,064,958.99
  5. Step 5: Solve for x
    x = 298,064,958.99/20,797.38
  6. Step 6: Final answer
    x = 14,331.85

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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.