Home / 39,257.43-54,175.62-21,352.80

Finding the Fourth Proportional to 39,257.43, 54,175.62 and 21,352.80

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Solution

The fourth proportional to 39,257.43, 54,175.62 and 21,352.80 is: 29,467.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,257.43 : 54,175.62 = 21,352.80 : x
  2. Step 2: Convert to fraction form
    39,257.43/54,175.62 = 21,352.80/x
  3. Step 3: Cross multiply
    39,257.43x = 54,175.62 × 21,352.80
  4. Step 4: Simplify right side
    39,257.43x = 1,156,801,178.74
  5. Step 5: Solve for x
    x = 1,156,801,178.74/39,257.43
  6. Step 6: Final answer
    x = 29,467.06

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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.