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Finding the Fourth Proportional to 30,558.29, 45,837.47 and 8,371.86

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Solution

The fourth proportional to 30,558.29, 45,837.47 and 8,371.86 is: 12,557.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,558.29 : 45,837.47 = 8,371.86 : x
  2. Step 2: Convert to fraction form
    30,558.29/45,837.47 = 8,371.86/x
  3. Step 3: Cross multiply
    30,558.29x = 45,837.47 × 8,371.86
  4. Step 4: Simplify right side
    30,558.29x = 383,744,881.59
  5. Step 5: Solve for x
    x = 383,744,881.59/30,558.29
  6. Step 6: Final answer
    x = 12,557.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.