Home / 20,010.20-29,991.30-8,893.40

Finding the Fourth Proportional to 20,010.20, 29,991.30 and 8,893.40

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Solution

The fourth proportional to 20,010.20, 29,991.30 and 8,893.40 is: 13,329.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,010.20 : 29,991.30 = 8,893.40 : x
  2. Step 2: Convert to fraction form
    20,010.20/29,991.30 = 8,893.40/x
  3. Step 3: Cross multiply
    20,010.20x = 29,991.30 × 8,893.40
  4. Step 4: Simplify right side
    20,010.20x = 266,724,627.42
  5. Step 5: Solve for x
    x = 266,724,627.42/20,010.20
  6. Step 6: Final answer
    x = 13,329.43

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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.