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Finding the Fourth Proportional to 20,095, 30,139.26 and 14,233.84

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Solution

The fourth proportional to 20,095, 30,139.26 and 14,233.84 is: 21,348.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,095 : 30,139.26 = 14,233.84 : x
  2. Step 2: Convert to fraction form
    20,095/30,139.26 = 14,233.84/x
  3. Step 3: Cross multiply
    20,095x = 30,139.26 × 14,233.84
  4. Step 4: Simplify right side
    20,095x = 428,997,404.56
  5. Step 5: Solve for x
    x = 428,997,404.56/20,095
  6. Step 6: Final answer
    x = 21,348.47

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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.