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Finding the Fourth Proportional to 30,469.60, 45,704.40 and 16,472.80

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Solution

The fourth proportional to 30,469.60, 45,704.40 and 16,472.80 is: 24,709.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,469.60 : 45,704.40 = 16,472.80 : x
  2. Step 2: Convert to fraction form
    30,469.60/45,704.40 = 16,472.80/x
  3. Step 3: Cross multiply
    30,469.60x = 45,704.40 × 16,472.80
  4. Step 4: Simplify right side
    30,469.60x = 752,879,440.32
  5. Step 5: Solve for x
    x = 752,879,440.32/30,469.60
  6. Step 6: Final answer
    x = 24,709.20

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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.