Home / 27,952.31-38,576.90-20,866.43

Finding the Fourth Proportional to 27,952.31, 38,576.90 and 20,866.43

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Solution

The fourth proportional to 27,952.31, 38,576.90 and 20,866.43 is: 28,797.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,952.31 : 38,576.90 = 20,866.43 : x
  2. Step 2: Convert to fraction form
    27,952.31/38,576.90 = 20,866.43/x
  3. Step 3: Cross multiply
    27,952.31x = 38,576.90 × 20,866.43
  4. Step 4: Simplify right side
    27,952.31x = 804,962,183.47
  5. Step 5: Solve for x
    x = 804,962,183.47/27,952.31
  6. Step 6: Final answer
    x = 28,797.70

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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.