Home / 27,865.44-38,424.48-21,074.88

Finding the Fourth Proportional to 27,865.44, 38,424.48 and 21,074.88

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Solution

The fourth proportional to 27,865.44, 38,424.48 and 21,074.88 is: 29,060.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,865.44 : 38,424.48 = 21,074.88 : x
  2. Step 2: Convert to fraction form
    27,865.44/38,424.48 = 21,074.88/x
  3. Step 3: Cross multiply
    27,865.44x = 38,424.48 × 21,074.88
  4. Step 4: Simplify right side
    27,865.44x = 809,791,305.06
  5. Step 5: Solve for x
    x = 809,791,305.06/27,865.44
  6. Step 6: Final answer
    x = 29,060.78

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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.