Home / 39,642.65-54,735.55-25,520.09

Finding the Fourth Proportional to 39,642.65, 54,735.55 and 25,520.09

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Solution

The fourth proportional to 39,642.65, 54,735.55 and 25,520.09 is: 35,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,642.65 : 54,735.55 = 25,520.09 : x
  2. Step 2: Convert to fraction form
    39,642.65/54,735.55 = 25,520.09/x
  3. Step 3: Cross multiply
    39,642.65x = 54,735.55 × 25,520.09
  4. Step 4: Simplify right side
    39,642.65x = 1,396,856,162.20
  5. Step 5: Solve for x
    x = 1,396,856,162.20/39,642.65
  6. Step 6: Final answer
    x = 35,236.20

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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.