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Finding the Fourth Proportional to 30,274.60, 45,398.94 and 9,499.72

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Solution

The fourth proportional to 30,274.60, 45,398.94 and 9,499.72 is: 14,245.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,274.60 : 45,398.94 = 9,499.72 : x
  2. Step 2: Convert to fraction form
    30,274.60/45,398.94 = 9,499.72/x
  3. Step 3: Cross multiply
    30,274.60x = 45,398.94 × 9,499.72
  4. Step 4: Simplify right side
    30,274.60x = 431,277,218.30
  5. Step 5: Solve for x
    x = 431,277,218.30/30,274.60
  6. Step 6: Final answer
    x = 14,245.51

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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.