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Finding the Fourth Proportional to 37,272, 51,435.36 and 20,504.64

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Solution

The fourth proportional to 37,272, 51,435.36 and 20,504.64 is: 28,296.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,272 : 51,435.36 = 20,504.64 : x
  2. Step 2: Convert to fraction form
    37,272/51,435.36 = 20,504.64/x
  3. Step 3: Cross multiply
    37,272x = 51,435.36 × 20,504.64
  4. Step 4: Simplify right side
    37,272x = 1,054,663,540.07
  5. Step 5: Solve for x
    x = 1,054,663,540.07/37,272
  6. Step 6: Final answer
    x = 28,296.40

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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.