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Finding the Fourth Proportional to 37,171, 51,295.98 and 20,403.64

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Solution

The fourth proportional to 37,171, 51,295.98 and 20,403.64 is: 28,157.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,171 : 51,295.98 = 20,403.64 : x
  2. Step 2: Convert to fraction form
    37,171/51,295.98 = 20,403.64/x
  3. Step 3: Cross multiply
    37,171x = 51,295.98 × 20,403.64
  4. Step 4: Simplify right side
    37,171x = 1,046,624,709.37
  5. Step 5: Solve for x
    x = 1,046,624,709.37/37,171
  6. Step 6: Final answer
    x = 28,157.02

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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.