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Finding the Fourth Proportional to 36,415.08, 50,250.90 and 20,499

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Solution

The fourth proportional to 36,415.08, 50,250.90 and 20,499 is: 28,287.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,415.08 : 50,250.90 = 20,499 : x
  2. Step 2: Convert to fraction form
    36,415.08/50,250.90 = 20,499/x
  3. Step 3: Cross multiply
    36,415.08x = 50,250.90 × 20,499
  4. Step 4: Simplify right side
    36,415.08x = 1,030,093,199.10
  5. Step 5: Solve for x
    x = 1,030,093,199.10/36,415.08
  6. Step 6: Final answer
    x = 28,287.54

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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.