Home / 39,201.64-58,919.10-18,439.72

Finding the Fourth Proportional to 39,201.64, 58,919.10 and 18,439.72

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Solution

The fourth proportional to 39,201.64, 58,919.10 and 18,439.72 is: 27,714.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,201.64 : 58,919.10 = 18,439.72 : x
  2. Step 2: Convert to fraction form
    39,201.64/58,919.10 = 18,439.72/x
  3. Step 3: Cross multiply
    39,201.64x = 58,919.10 × 18,439.72
  4. Step 4: Simplify right side
    39,201.64x = 1,086,451,319.86
  5. Step 5: Solve for x
    x = 1,086,451,319.86/39,201.64
  6. Step 6: Final answer
    x = 27,714.44

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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.