Home / 39,530.16-54,550.88-21,625

Finding the Fourth Proportional to 39,530.16, 54,550.88 and 21,625

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Solution

The fourth proportional to 39,530.16, 54,550.88 and 21,625 is: 29,842.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,530.16 : 54,550.88 = 21,625 : x
  2. Step 2: Convert to fraction form
    39,530.16/54,550.88 = 21,625/x
  3. Step 3: Cross multiply
    39,530.16x = 54,550.88 × 21,625
  4. Step 4: Simplify right side
    39,530.16x = 1,179,662,780
  5. Step 5: Solve for x
    x = 1,179,662,780/39,530.16
  6. Step 6: Final answer
    x = 29,842.09

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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.