Home / 20,266.75-30,375.17-14,391.55

Finding the Fourth Proportional to 20,266.75, 30,375.17 and 14,391.55

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Solution

The fourth proportional to 20,266.75, 30,375.17 and 14,391.55 is: 21,569.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,266.75 : 30,375.17 = 14,391.55 : x
  2. Step 2: Convert to fraction form
    20,266.75/30,375.17 = 14,391.55/x
  3. Step 3: Cross multiply
    20,266.75x = 30,375.17 × 14,391.55
  4. Step 4: Simplify right side
    20,266.75x = 437,145,705.86
  5. Step 5: Solve for x
    x = 437,145,705.86/20,266.75
  6. Step 6: Final answer
    x = 21,569.60

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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.