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Finding the Fourth Proportional to 27,803.27, 38,369.16 and 15,867.72

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Solution

The fourth proportional to 27,803.27, 38,369.16 and 15,867.72 is: 21,897.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,803.27 : 38,369.16 = 15,867.72 : x
  2. Step 2: Convert to fraction form
    27,803.27/38,369.16 = 15,867.72/x
  3. Step 3: Cross multiply
    27,803.27x = 38,369.16 × 15,867.72
  4. Step 4: Simplify right side
    27,803.27x = 608,831,087.52
  5. Step 5: Solve for x
    x = 608,831,087.52/27,803.27
  6. Step 6: Final answer
    x = 21,897.82

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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.