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Finding the Fourth Proportional to 20,047.70, 30,035.10 and 16,329.80

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Solution

The fourth proportional to 20,047.70, 30,035.10 and 16,329.80 is: 24,465.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,047.70 : 30,035.10 = 16,329.80 : x
  2. Step 2: Convert to fraction form
    20,047.70/30,035.10 = 16,329.80/x
  3. Step 3: Cross multiply
    20,047.70x = 30,035.10 × 16,329.80
  4. Step 4: Simplify right side
    20,047.70x = 490,467,175.98
  5. Step 5: Solve for x
    x = 490,467,175.98/20,047.70
  6. Step 6: Final answer
    x = 24,465.01

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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.