Home / 27,982.56-38,616.66-15,408.12

Finding the Fourth Proportional to 27,982.56, 38,616.66 and 15,408.12

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Solution

The fourth proportional to 27,982.56, 38,616.66 and 15,408.12 is: 21,263.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,982.56 : 38,616.66 = 15,408.12 : x
  2. Step 2: Convert to fraction form
    27,982.56/38,616.66 = 15,408.12/x
  3. Step 3: Cross multiply
    27,982.56x = 38,616.66 × 15,408.12
  4. Step 4: Simplify right side
    27,982.56x = 595,010,131.28
  5. Step 5: Solve for x
    x = 595,010,131.28/27,982.56
  6. Step 6: Final answer
    x = 21,263.61

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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.