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Finding the Fourth Proportional to 37,386, 51,592.68 and 20,619

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Solution

The fourth proportional to 37,386, 51,592.68 and 20,619 is: 28,454.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,386 : 51,592.68 = 20,619 : x
  2. Step 2: Convert to fraction form
    37,386/51,592.68 = 20,619/x
  3. Step 3: Cross multiply
    37,386x = 51,592.68 × 20,619
  4. Step 4: Simplify right side
    37,386x = 1,063,789,468.92
  5. Step 5: Solve for x
    x = 1,063,789,468.92/37,386
  6. Step 6: Final answer
    x = 28,454.22

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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.