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Finding the Fourth Proportional to 36,402.70, 50,233.59 and 20,486.50

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Solution

The fourth proportional to 36,402.70, 50,233.59 and 20,486.50 is: 28,270.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,402.70 : 50,233.59 = 20,486.50 : x
  2. Step 2: Convert to fraction form
    36,402.70/50,233.59 = 20,486.50/x
  3. Step 3: Cross multiply
    36,402.70x = 50,233.59 × 20,486.50
  4. Step 4: Simplify right side
    36,402.70x = 1,029,110,441.54
  5. Step 5: Solve for x
    x = 1,029,110,441.54/36,402.70
  6. Step 6: Final answer
    x = 28,270.17

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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.