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Finding the Fourth Proportional to 20,152.70, 30,192.60 and 16,434.80

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Solution

The fourth proportional to 20,152.70, 30,192.60 and 16,434.80 is: 24,622.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.70 : 30,192.60 = 16,434.80 : x
  2. Step 2: Convert to fraction form
    20,152.70/30,192.60 = 16,434.80/x
  3. Step 3: Cross multiply
    20,152.70x = 30,192.60 × 16,434.80
  4. Step 4: Simplify right side
    20,152.70x = 496,209,342.48
  5. Step 5: Solve for x
    x = 496,209,342.48/20,152.70
  6. Step 6: Final answer
    x = 24,622.47

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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.