Home / 27,760.28-38,310.10-15,185.04

Finding the Fourth Proportional to 27,760.28, 38,310.10 and 15,185.04

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Solution

The fourth proportional to 27,760.28, 38,310.10 and 15,185.04 is: 20,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,760.28 : 38,310.10 = 15,185.04 : x
  2. Step 2: Convert to fraction form
    27,760.28/38,310.10 = 15,185.04/x
  3. Step 3: Cross multiply
    27,760.28x = 38,310.10 × 15,185.04
  4. Step 4: Simplify right side
    27,760.28x = 581,740,400.90
  5. Step 5: Solve for x
    x = 581,740,400.90/27,760.28
  6. Step 6: Final answer
    x = 20,955.85

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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.