Home / 27,512.75-37,967.22-15,575.78

Finding the Fourth Proportional to 27,512.75, 37,967.22 and 15,575.78

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Solution

The fourth proportional to 27,512.75, 37,967.22 and 15,575.78 is: 21,494.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,512.75 : 37,967.22 = 15,575.78 : x
  2. Step 2: Convert to fraction form
    27,512.75/37,967.22 = 15,575.78/x
  3. Step 3: Cross multiply
    27,512.75x = 37,967.22 × 15,575.78
  4. Step 4: Simplify right side
    27,512.75x = 591,369,065.93
  5. Step 5: Solve for x
    x = 591,369,065.93/27,512.75
  6. Step 6: Final answer
    x = 21,494.36

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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.