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Finding the Fourth Proportional to 37,154, 51,272.52 and 20,388.08

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Solution

The fourth proportional to 37,154, 51,272.52 and 20,388.08 is: 28,135.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,154 : 51,272.52 = 20,388.08 : x
  2. Step 2: Convert to fraction form
    37,154/51,272.52 = 20,388.08/x
  3. Step 3: Cross multiply
    37,154x = 51,272.52 × 20,388.08
  4. Step 4: Simplify right side
    37,154x = 1,045,348,239.56
  5. Step 5: Solve for x
    x = 1,045,348,239.56/37,154
  6. Step 6: Final answer
    x = 28,135.55

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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.