Home / 19,932.88-29,899.80-8,242.96

Finding the Fourth Proportional to 19,932.88, 29,899.80 and 8,242.96

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Solution

The fourth proportional to 19,932.88, 29,899.80 and 8,242.96 is: 12,364.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,932.88 : 29,899.80 = 8,242.96 : x
  2. Step 2: Convert to fraction form
    19,932.88/29,899.80 = 8,242.96/x
  3. Step 3: Cross multiply
    19,932.88x = 29,899.80 × 8,242.96
  4. Step 4: Simplify right side
    19,932.88x = 246,462,855.41
  5. Step 5: Solve for x
    x = 246,462,855.41/19,932.88
  6. Step 6: Final answer
    x = 12,364.64

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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.