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Finding the Fourth Proportional to 30,046.53, 45,070.92 and 8,986.85

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Solution

The fourth proportional to 30,046.53, 45,070.92 and 8,986.85 is: 13,480.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,046.53 : 45,070.92 = 8,986.85 : x
  2. Step 2: Convert to fraction form
    30,046.53/45,070.92 = 8,986.85/x
  3. Step 3: Cross multiply
    30,046.53x = 45,070.92 × 8,986.85
  4. Step 4: Simplify right side
    30,046.53x = 405,045,372.05
  5. Step 5: Solve for x
    x = 405,045,372.05/30,046.53
  6. Step 6: Final answer
    x = 13,480.60

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1.5x scale

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.