Home / 20,796.24-31,184.90-13,447.92

Finding the Fourth Proportional to 20,796.24, 31,184.90 and 13,447.92

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Solution

The fourth proportional to 20,796.24, 31,184.90 and 13,447.92 is: 20,165.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796.24 : 31,184.90 = 13,447.92 : x
  2. Step 2: Convert to fraction form
    20,796.24/31,184.90 = 13,447.92/x
  3. Step 3: Cross multiply
    20,796.24x = 31,184.90 × 13,447.92
  4. Step 4: Simplify right side
    20,796.24x = 419,372,040.41
  5. Step 5: Solve for x
    x = 419,372,040.41/20,796.24
  6. Step 6: Final answer
    x = 20,165.76

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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.