Home / 47,635.20-71,412.48-18,036.72

Finding the Fourth Proportional to 47,635.20, 71,412.48 and 18,036.72

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Solution

The fourth proportional to 47,635.20, 71,412.48 and 18,036.72 is: 27,039.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,635.20 : 71,412.48 = 18,036.72 : x
  2. Step 2: Convert to fraction form
    47,635.20/71,412.48 = 18,036.72/x
  3. Step 3: Cross multiply
    47,635.20x = 71,412.48 × 18,036.72
  4. Step 4: Simplify right side
    47,635.20x = 1,288,046,906.27
  5. Step 5: Solve for x
    x = 1,288,046,906.27/47,635.20
  6. Step 6: Final answer
    x = 27,039.81

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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.