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Finding the Fourth Proportional to 20,165.01, 30,237.98 and 7,015.74

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Solution

The fourth proportional to 20,165.01, 30,237.98 and 7,015.74 is: 10,520.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,165.01 : 30,237.98 = 7,015.74 : x
  2. Step 2: Convert to fraction form
    20,165.01/30,237.98 = 7,015.74/x
  3. Step 3: Cross multiply
    20,165.01x = 30,237.98 × 7,015.74
  4. Step 4: Simplify right side
    20,165.01x = 212,141,770.73
  5. Step 5: Solve for x
    x = 212,141,770.73/20,165.01
  6. Step 6: Final answer
    x = 10,520.29

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1.5x scale

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.