Home / 39,288.88-54,217.80-21,383.44

Finding the Fourth Proportional to 39,288.88, 54,217.80 and 21,383.44

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Solution

The fourth proportional to 39,288.88, 54,217.80 and 21,383.44 is: 29,508.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,288.88 : 54,217.80 = 21,383.44 : x
  2. Step 2: Convert to fraction form
    39,288.88/54,217.80 = 21,383.44/x
  3. Step 3: Cross multiply
    39,288.88x = 54,217.80 × 21,383.44
  4. Step 4: Simplify right side
    39,288.88x = 1,159,363,073.23
  5. Step 5: Solve for x
    x = 1,159,363,073.23/39,288.88
  6. Step 6: Final answer
    x = 29,508.68

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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.