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Finding the Fourth Proportional to 30,652.67, 45,979.15 and 9,305.57

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Solution

The fourth proportional to 30,652.67, 45,979.15 and 9,305.57 is: 13,958.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,652.67 : 45,979.15 = 9,305.57 : x
  2. Step 2: Convert to fraction form
    30,652.67/45,979.15 = 9,305.57/x
  3. Step 3: Cross multiply
    30,652.67x = 45,979.15 × 9,305.57
  4. Step 4: Simplify right side
    30,652.67x = 427,861,945.71
  5. Step 5: Solve for x
    x = 427,861,945.71/30,652.67
  6. Step 6: Final answer
    x = 13,958.39

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Similar ratio
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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.