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Finding the Fourth Proportional to 19,773.24, 27,288.93 and 11,815.30

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Solution

The fourth proportional to 19,773.24, 27,288.93 and 11,815.30 is: 16,306.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,773.24 : 27,288.93 = 11,815.30 : x
  2. Step 2: Convert to fraction form
    19,773.24/27,288.93 = 11,815.30/x
  3. Step 3: Cross multiply
    19,773.24x = 27,288.93 × 11,815.30
  4. Step 4: Simplify right side
    19,773.24x = 322,426,894.63
  5. Step 5: Solve for x
    x = 322,426,894.63/19,773.24
  6. Step 6: Final answer
    x = 16,306.22

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.