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Finding the Fourth Proportional to 37,276, 51,440.88 and 20,508.64

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Solution

The fourth proportional to 37,276, 51,440.88 and 20,508.64 is: 28,301.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,276 : 51,440.88 = 20,508.64 : x
  2. Step 2: Convert to fraction form
    37,276/51,440.88 = 20,508.64/x
  3. Step 3: Cross multiply
    37,276x = 51,440.88 × 20,508.64
  4. Step 4: Simplify right side
    37,276x = 1,054,982,489.20
  5. Step 5: Solve for x
    x = 1,054,982,489.20/37,276
  6. Step 6: Final answer
    x = 28,301.92

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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.