Home / 27,910.32-38,515.98-15,334.80

Finding the Fourth Proportional to 27,910.32, 38,515.98 and 15,334.80

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Solution

The fourth proportional to 27,910.32, 38,515.98 and 15,334.80 is: 21,161.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,910.32 : 38,515.98 = 15,334.80 : x
  2. Step 2: Convert to fraction form
    27,910.32/38,515.98 = 15,334.80/x
  3. Step 3: Cross multiply
    27,910.32x = 38,515.98 × 15,334.80
  4. Step 4: Simplify right side
    27,910.32x = 590,634,850.10
  5. Step 5: Solve for x
    x = 590,634,850.10/27,910.32
  6. Step 6: Final answer
    x = 21,161.88

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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.