Home / 39,185.06-54,073.94-21,279.68

Finding the Fourth Proportional to 39,185.06, 54,073.94 and 21,279.68

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Solution

The fourth proportional to 39,185.06, 54,073.94 and 21,279.68 is: 29,365.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,185.06 : 54,073.94 = 21,279.68 : x
  2. Step 2: Convert to fraction form
    39,185.06/54,073.94 = 21,279.68/x
  3. Step 3: Cross multiply
    39,185.06x = 54,073.94 × 21,279.68
  4. Step 4: Simplify right side
    39,185.06x = 1,150,676,248.12
  5. Step 5: Solve for x
    x = 1,150,676,248.12/39,185.06
  6. Step 6: Final answer
    x = 29,365.18

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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.