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Finding the Fourth Proportional to 27,652, 38,146.60 and 18,702.64

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Solution

The fourth proportional to 27,652, 38,146.60 and 18,702.64 is: 25,800.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,652 : 38,146.60 = 18,702.64 : x
  2. Step 2: Convert to fraction form
    27,652/38,146.60 = 18,702.64/x
  3. Step 3: Cross multiply
    27,652x = 38,146.60 × 18,702.64
  4. Step 4: Simplify right side
    27,652x = 713,442,127.02
  5. Step 5: Solve for x
    x = 713,442,127.02/27,652
  6. Step 6: Final answer
    x = 25,800.74

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Why These Related Problems?

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