Home / 20,223.90-30,353.94-12,841.56

Finding the Fourth Proportional to 20,223.90, 30,353.94 and 12,841.56

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Solution

The fourth proportional to 20,223.90, 30,353.94 and 12,841.56 is: 19,273.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,223.90 : 30,353.94 = 12,841.56 : x
  2. Step 2: Convert to fraction form
    20,223.90/30,353.94 = 12,841.56/x
  3. Step 3: Cross multiply
    20,223.90x = 30,353.94 × 12,841.56
  4. Step 4: Simplify right side
    20,223.90x = 389,791,941.75
  5. Step 5: Solve for x
    x = 389,791,941.75/20,223.90
  6. Step 6: Final answer
    x = 19,273.83

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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.