Home / 19,789-29,657.58-11,028.04

Finding the Fourth Proportional to 19,789, 29,657.58 and 11,028.04

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Solution

The fourth proportional to 19,789, 29,657.58 and 11,028.04 is: 16,527.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,789 : 29,657.58 = 11,028.04 : x
  2. Step 2: Convert to fraction form
    19,789/29,657.58 = 11,028.04/x
  3. Step 3: Cross multiply
    19,789x = 29,657.58 × 11,028.04
  4. Step 4: Simplify right side
    19,789x = 327,064,978.54
  5. Step 5: Solve for x
    x = 327,064,978.54/19,789
  6. Step 6: Final answer
    x = 16,527.62

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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.