Home / 19,905.46-29,855.89-7,425.92

Finding the Fourth Proportional to 19,905.46, 29,855.89 and 7,425.92

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Solution

The fourth proportional to 19,905.46, 29,855.89 and 7,425.92 is: 11,138.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,905.46 : 29,855.89 = 7,425.92 : x
  2. Step 2: Convert to fraction form
    19,905.46/29,855.89 = 7,425.92/x
  3. Step 3: Cross multiply
    19,905.46x = 29,855.89 × 7,425.92
  4. Step 4: Simplify right side
    19,905.46x = 221,707,450.67
  5. Step 5: Solve for x
    x = 221,707,450.67/19,905.46
  6. Step 6: Final answer
    x = 11,138.02

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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.