Home / 27,761.12-38,310.36-15,185.84

Finding the Fourth Proportional to 27,761.12, 38,310.36 and 15,185.84

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Solution

The fourth proportional to 27,761.12, 38,310.36 and 15,185.84 is: 20,956.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,761.12 : 38,310.36 = 15,185.84 : x
  2. Step 2: Convert to fraction form
    27,761.12/38,310.36 = 15,185.84/x
  3. Step 3: Cross multiply
    27,761.12x = 38,310.36 × 15,185.84
  4. Step 4: Simplify right side
    27,761.12x = 581,774,997.30
  5. Step 5: Solve for x
    x = 581,774,997.30/27,761.12
  6. Step 6: Final answer
    x = 20,956.47

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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.