Home / 27,759.68-38,309.44-15,185.28

Finding the Fourth Proportional to 27,759.68, 38,309.44 and 15,185.28

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Solution

The fourth proportional to 27,759.68, 38,309.44 and 15,185.28 is: 20,956.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,759.68 : 38,309.44 = 15,185.28 : x
  2. Step 2: Convert to fraction form
    27,759.68/38,309.44 = 15,185.28/x
  3. Step 3: Cross multiply
    27,759.68x = 38,309.44 × 15,185.28
  4. Step 4: Simplify right side
    27,759.68x = 581,739,573.04
  5. Step 5: Solve for x
    x = 581,739,573.04/27,759.68
  6. Step 6: Final answer
    x = 20,956.28

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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.