Home / 39,528.72-54,550.46-21,624.88

Finding the Fourth Proportional to 39,528.72, 54,550.46 and 21,624.88

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Solution

The fourth proportional to 39,528.72, 54,550.46 and 21,624.88 is: 29,842.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,528.72 : 54,550.46 = 21,624.88 : x
  2. Step 2: Convert to fraction form
    39,528.72/54,550.46 = 21,624.88/x
  3. Step 3: Cross multiply
    39,528.72x = 54,550.46 × 21,624.88
  4. Step 4: Simplify right side
    39,528.72x = 1,179,647,151.44
  5. Step 5: Solve for x
    x = 1,179,647,151.44/39,528.72
  6. Step 6: Final answer
    x = 29,842.79

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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.