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Finding the Fourth Proportional to 36,394.80, 50,224.50 and 20,478.93

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Solution

The fourth proportional to 36,394.80, 50,224.50 and 20,478.93 is: 28,260.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,394.80 : 50,224.50 = 20,478.93 : x
  2. Step 2: Convert to fraction form
    36,394.80/50,224.50 = 20,478.93/x
  3. Step 3: Cross multiply
    36,394.80x = 50,224.50 × 20,478.93
  4. Step 4: Simplify right side
    36,394.80x = 1,028,544,019.79
  5. Step 5: Solve for x
    x = 1,028,544,019.79/36,394.80
  6. Step 6: Final answer
    x = 28,260.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.