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Finding the Fourth Proportional to 30,350.56, 45,531.04 and 9,290.08

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Solution

The fourth proportional to 30,350.56, 45,531.04 and 9,290.08 is: 13,936.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,350.56 : 45,531.04 = 9,290.08 : x
  2. Step 2: Convert to fraction form
    30,350.56/45,531.04 = 9,290.08/x
  3. Step 3: Cross multiply
    30,350.56x = 45,531.04 × 9,290.08
  4. Step 4: Simplify right side
    30,350.56x = 422,987,004.08
  5. Step 5: Solve for x
    x = 422,987,004.08/30,350.56
  6. Step 6: Final answer
    x = 13,936.71

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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.