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Finding the Fourth Proportional to 30,503.97, 45,756 and 8,317.35

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Solution

The fourth proportional to 30,503.97, 45,756 and 8,317.35 is: 12,476.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,503.97 : 45,756 = 8,317.35 : x
  2. Step 2: Convert to fraction form
    30,503.97/45,756 = 8,317.35/x
  3. Step 3: Cross multiply
    30,503.97x = 45,756 × 8,317.35
  4. Step 4: Simplify right side
    30,503.97x = 380,568,666.60
  5. Step 5: Solve for x
    x = 380,568,666.60/30,503.97
  6. Step 6: Final answer
    x = 12,476.04

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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.