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Finding the Fourth Proportional to 30,558.87, 45,834.66 and 8,374.19

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Solution

The fourth proportional to 30,558.87, 45,834.66 and 8,374.19 is: 12,560.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,558.87 : 45,834.66 = 8,374.19 : x
  2. Step 2: Convert to fraction form
    30,558.87/45,834.66 = 8,374.19/x
  3. Step 3: Cross multiply
    30,558.87x = 45,834.66 × 8,374.19
  4. Step 4: Simplify right side
    30,558.87x = 383,827,922.25
  5. Step 5: Solve for x
    x = 383,827,922.25/30,558.87
  6. Step 6: Final answer
    x = 12,560.28

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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.