Home / 19,721.06-29,586.30-6,394.06

Finding the Fourth Proportional to 19,721.06, 29,586.30 and 6,394.06

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Solution

The fourth proportional to 19,721.06, 29,586.30 and 6,394.06 is: 9,592.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.06 : 29,586.30 = 6,394.06 : x
  2. Step 2: Convert to fraction form
    19,721.06/29,586.30 = 6,394.06/x
  3. Step 3: Cross multiply
    19,721.06x = 29,586.30 × 6,394.06
  4. Step 4: Simplify right side
    19,721.06x = 189,176,577.38
  5. Step 5: Solve for x
    x = 189,176,577.38/19,721.06
  6. Step 6: Final answer
    x = 9,592.62

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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.