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Finding the Fourth Proportional to 30,117.87, 45,198.67 and 16,995.87

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Solution

The fourth proportional to 30,117.87, 45,198.67 and 16,995.87 is: 25,506.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,117.87 : 45,198.67 = 16,995.87 : x
  2. Step 2: Convert to fraction form
    30,117.87/45,198.67 = 16,995.87/x
  3. Step 3: Cross multiply
    30,117.87x = 45,198.67 × 16,995.87
  4. Step 4: Simplify right side
    30,117.87x = 768,190,719.49
  5. Step 5: Solve for x
    x = 768,190,719.49/30,117.87
  6. Step 6: Final answer
    x = 25,506.14

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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.