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Finding the Fourth Proportional to 37,386, 51,593.76 and 20,620.08

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Solution

The fourth proportional to 37,386, 51,593.76 and 20,620.08 is: 28,456.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,386 : 51,593.76 = 20,620.08 : x
  2. Step 2: Convert to fraction form
    37,386/51,593.76 = 20,620.08/x
  3. Step 3: Cross multiply
    37,386x = 51,593.76 × 20,620.08
  4. Step 4: Simplify right side
    37,386x = 1,063,867,458.70
  5. Step 5: Solve for x
    x = 1,063,867,458.70/37,386
  6. Step 6: Final answer
    x = 28,456.31

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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.