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Finding the Fourth Proportional to 36,793.40, 55,214.40 and 20,998.40

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Solution

The fourth proportional to 36,793.40, 55,214.40 and 20,998.40 is: 31,511.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,793.40 : 55,214.40 = 20,998.40 : x
  2. Step 2: Convert to fraction form
    36,793.40/55,214.40 = 20,998.40/x
  3. Step 3: Cross multiply
    36,793.40x = 55,214.40 × 20,998.40
  4. Step 4: Simplify right side
    36,793.40x = 1,159,414,056.96
  5. Step 5: Solve for x
    x = 1,159,414,056.96/36,793.40
  6. Step 6: Final answer
    x = 31,511.47

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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.