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Finding the Fourth Proportional to 30,600.99, 45,872.12 and 10,868.78

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Solution

The fourth proportional to 30,600.99, 45,872.12 and 10,868.78 is: 16,292.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,600.99 : 45,872.12 = 10,868.78 : x
  2. Step 2: Convert to fraction form
    30,600.99/45,872.12 = 10,868.78/x
  3. Step 3: Cross multiply
    30,600.99x = 45,872.12 × 10,868.78
  4. Step 4: Simplify right side
    30,600.99x = 498,574,122.27
  5. Step 5: Solve for x
    x = 498,574,122.27/30,600.99
  6. Step 6: Final answer
    x = 16,292.74

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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.