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Finding the Fourth Proportional to 30,305.73, 45,465.48 and 9,247.65

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Solution

The fourth proportional to 30,305.73, 45,465.48 and 9,247.65 is: 13,873.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,305.73 : 45,465.48 = 9,247.65 : x
  2. Step 2: Convert to fraction form
    30,305.73/45,465.48 = 9,247.65/x
  3. Step 3: Cross multiply
    30,305.73x = 45,465.48 × 9,247.65
  4. Step 4: Simplify right side
    30,305.73x = 420,448,799.88
  5. Step 5: Solve for x
    x = 420,448,799.88/30,305.73
  6. Step 6: Final answer
    x = 13,873.57

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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.