Home / 36,369.12-54,486.48-18,820.32

Finding the Fourth Proportional to 36,369.12, 54,486.48 and 18,820.32

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Solution

The fourth proportional to 36,369.12, 54,486.48 and 18,820.32 is: 28,195.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,369.12 : 54,486.48 = 18,820.32 : x
  2. Step 2: Convert to fraction form
    36,369.12/54,486.48 = 18,820.32/x
  3. Step 3: Cross multiply
    36,369.12x = 54,486.48 × 18,820.32
  4. Step 4: Simplify right side
    36,369.12x = 1,025,452,989.27
  5. Step 5: Solve for x
    x = 1,025,452,989.27/36,369.12
  6. Step 6: Final answer
    x = 28,195.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.