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Finding the Fourth Proportional to 20,551.96, 30,833.61 and 7,404.04

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Solution

The fourth proportional to 20,551.96, 30,833.61 and 7,404.04 is: 11,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,551.96 : 30,833.61 = 7,404.04 : x
  2. Step 2: Convert to fraction form
    20,551.96/30,833.61 = 7,404.04/x
  3. Step 3: Cross multiply
    20,551.96x = 30,833.61 × 7,404.04
  4. Step 4: Simplify right side
    20,551.96x = 228,293,281.78
  5. Step 5: Solve for x
    x = 228,293,281.78/20,551.96
  6. Step 6: Final answer
    x = 11,108.10

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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.