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Finding the Fourth Proportional to 30,116.87, 45,197.17 and 16,994.87

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Solution

The fourth proportional to 30,116.87, 45,197.17 and 16,994.87 is: 25,504.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,116.87 : 45,197.17 = 16,994.87 : x
  2. Step 2: Convert to fraction form
    30,116.87/45,197.17 = 16,994.87/x
  3. Step 3: Cross multiply
    30,116.87x = 45,197.17 × 16,994.87
  4. Step 4: Simplify right side
    30,116.87x = 768,119,760.04
  5. Step 5: Solve for x
    x = 768,119,760.04/30,116.87
  6. Step 6: Final answer
    x = 25,504.64

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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.