Home / 39,253.99-54,169.97-21,348.61

Finding the Fourth Proportional to 39,253.99, 54,169.97 and 21,348.61

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Solution

The fourth proportional to 39,253.99, 54,169.97 and 21,348.61 is: 29,460.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,253.99 : 54,169.97 = 21,348.61 : x
  2. Step 2: Convert to fraction form
    39,253.99/54,169.97 = 21,348.61/x
  3. Step 3: Cross multiply
    39,253.99x = 54,169.97 × 21,348.61
  4. Step 4: Simplify right side
    39,253.99x = 1,156,453,292.39
  5. Step 5: Solve for x
    x = 1,156,453,292.39/39,253.99
  6. Step 6: Final answer
    x = 29,460.79

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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.