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Finding the Fourth Proportional to 20,156, 30,235.08 and 6,306.08

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Solution

The fourth proportional to 20,156, 30,235.08 and 6,306.08 is: 9,459.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156 : 30,235.08 = 6,306.08 : x
  2. Step 2: Convert to fraction form
    20,156/30,235.08 = 6,306.08/x
  3. Step 3: Cross multiply
    20,156x = 30,235.08 × 6,306.08
  4. Step 4: Simplify right side
    20,156x = 190,664,833.29
  5. Step 5: Solve for x
    x = 190,664,833.29/20,156
  6. Step 6: Final answer
    x = 9,459.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.