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Finding the Fourth Proportional to 18,797.31, 28,328.09 and 16,925.49

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Solution

The fourth proportional to 18,797.31, 28,328.09 and 16,925.49 is: 25,507.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,797.31 : 28,328.09 = 16,925.49 : x
  2. Step 2: Convert to fraction form
    18,797.31/28,328.09 = 16,925.49/x
  3. Step 3: Cross multiply
    18,797.31x = 28,328.09 × 16,925.49
  4. Step 4: Simplify right side
    18,797.31x = 479,466,719.39
  5. Step 5: Solve for x
    x = 479,466,719.39/18,797.31
  6. Step 6: Final answer
    x = 25,507.20

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.