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Finding the Fourth Proportional to 36,343, 50,153.09 and 20,427.45

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Solution

The fourth proportional to 36,343, 50,153.09 and 20,427.45 is: 28,189.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,343 : 50,153.09 = 20,427.45 : x
  2. Step 2: Convert to fraction form
    36,343/50,153.09 = 20,427.45/x
  3. Step 3: Cross multiply
    36,343x = 50,153.09 × 20,427.45
  4. Step 4: Simplify right side
    36,343x = 1,024,499,738.32
  5. Step 5: Solve for x
    x = 1,024,499,738.32/36,343
  6. Step 6: Final answer
    x = 28,189.74

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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.