Home / 27,584.35-38,066.15-15,647.78

Finding the Fourth Proportional to 27,584.35, 38,066.15 and 15,647.78

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Solution

The fourth proportional to 27,584.35, 38,066.15 and 15,647.78 is: 21,593.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,584.35 : 38,066.15 = 15,647.78 : x
  2. Step 2: Convert to fraction form
    27,584.35/38,066.15 = 15,647.78/x
  3. Step 3: Cross multiply
    27,584.35x = 38,066.15 × 15,647.78
  4. Step 4: Simplify right side
    27,584.35x = 595,650,874.93
  5. Step 5: Solve for x
    x = 595,650,874.93/27,584.35
  6. Step 6: Final answer
    x = 21,593.80

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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.