Home / 28,085.06-38,759.82-15,512.24

Finding the Fourth Proportional to 28,085.06, 38,759.82 and 15,512.24

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Solution

The fourth proportional to 28,085.06, 38,759.82 and 15,512.24 is: 21,408.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085.06 : 38,759.82 = 15,512.24 : x
  2. Step 2: Convert to fraction form
    28,085.06/38,759.82 = 15,512.24/x
  3. Step 3: Cross multiply
    28,085.06x = 38,759.82 × 15,512.24
  4. Step 4: Simplify right side
    28,085.06x = 601,251,668.93
  5. Step 5: Solve for x
    x = 601,251,668.93/28,085.06
  6. Step 6: Final answer
    x = 21,408.24

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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.