Home / 27,793.12-38,354.24-15,217.84

Finding the Fourth Proportional to 27,793.12, 38,354.24 and 15,217.84

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Solution

The fourth proportional to 27,793.12, 38,354.24 and 15,217.84 is: 21,000.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,793.12 : 38,354.24 = 15,217.84 : x
  2. Step 2: Convert to fraction form
    27,793.12/38,354.24 = 15,217.84/x
  3. Step 3: Cross multiply
    27,793.12x = 38,354.24 × 15,217.84
  4. Step 4: Simplify right side
    27,793.12x = 583,668,687.64
  5. Step 5: Solve for x
    x = 583,668,687.64/27,793.12
  6. Step 6: Final answer
    x = 21,000.47

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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.