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Finding the Fourth Proportional to 36,395.31, 50,225.31 and 20,479.89

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Solution

The fourth proportional to 36,395.31, 50,225.31 and 20,479.89 is: 28,262.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,395.31 : 50,225.31 = 20,479.89 : x
  2. Step 2: Convert to fraction form
    36,395.31/50,225.31 = 20,479.89/x
  3. Step 3: Cross multiply
    36,395.31x = 50,225.31 × 20,479.89
  4. Step 4: Simplify right side
    36,395.31x = 1,028,608,824.02
  5. Step 5: Solve for x
    x = 1,028,608,824.02/36,395.31
  6. Step 6: Final answer
    x = 28,262.13

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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.