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Finding the Fourth Proportional to 20,133.70, 30,103.35 and 14,884.90

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Solution

The fourth proportional to 20,133.70, 30,103.35 and 14,884.90 is: 22,255.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,133.70 : 30,103.35 = 14,884.90 : x
  2. Step 2: Convert to fraction form
    20,133.70/30,103.35 = 14,884.90/x
  3. Step 3: Cross multiply
    20,133.70x = 30,103.35 × 14,884.90
  4. Step 4: Simplify right side
    20,133.70x = 448,085,354.42
  5. Step 5: Solve for x
    x = 448,085,354.42/20,133.70
  6. Step 6: Final answer
    x = 22,255.49

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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.