Home / 27,757.23-38,280.77-19,674.90

Finding the Fourth Proportional to 27,757.23, 38,280.77 and 19,674.90

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Solution

The fourth proportional to 27,757.23, 38,280.77 and 19,674.90 is: 27,134.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,757.23 : 38,280.77 = 19,674.90 : x
  2. Step 2: Convert to fraction form
    27,757.23/38,280.77 = 19,674.90/x
  3. Step 3: Cross multiply
    27,757.23x = 38,280.77 × 19,674.90
  4. Step 4: Simplify right side
    27,757.23x = 753,170,321.67
  5. Step 5: Solve for x
    x = 753,170,321.67/27,757.23
  6. Step 6: Final answer
    x = 27,134.20

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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.