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Finding the Fourth Proportional to 30,504.30, 45,755.10 and 8,317.68

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Solution

The fourth proportional to 30,504.30, 45,755.10 and 8,317.68 is: 12,476.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,504.30 : 45,755.10 = 8,317.68 : x
  2. Step 2: Convert to fraction form
    30,504.30/45,755.10 = 8,317.68/x
  3. Step 3: Cross multiply
    30,504.30x = 45,755.10 × 8,317.68
  4. Step 4: Simplify right side
    30,504.30x = 380,576,280.17
  5. Step 5: Solve for x
    x = 380,576,280.17/30,504.30
  6. Step 6: Final answer
    x = 12,476.15

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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.