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Finding the Fourth Proportional to 18,306, 25,194.18 and 15,093.60

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Solution

The fourth proportional to 18,306, 25,194.18 and 15,093.60 is: 20,773.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,306 : 25,194.18 = 15,093.60 : x
  2. Step 2: Convert to fraction form
    18,306/25,194.18 = 15,093.60/x
  3. Step 3: Cross multiply
    18,306x = 25,194.18 × 15,093.60
  4. Step 4: Simplify right side
    18,306x = 380,270,875.25
  5. Step 5: Solve for x
    x = 380,270,875.25/18,306
  6. Step 6: Final answer
    x = 20,773.02

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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.