Home / 25,791.80-38,691.70-11,000.76

Finding the Fourth Proportional to 25,791.80, 38,691.70 and 11,000.76

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Solution

The fourth proportional to 25,791.80, 38,691.70 and 11,000.76 is: 16,502.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,791.80 : 38,691.70 = 11,000.76 : x
  2. Step 2: Convert to fraction form
    25,791.80/38,691.70 = 11,000.76/x
  3. Step 3: Cross multiply
    25,791.80x = 38,691.70 × 11,000.76
  4. Step 4: Simplify right side
    25,791.80x = 425,638,105.69
  5. Step 5: Solve for x
    x = 425,638,105.69/25,791.80
  6. Step 6: Final answer
    x = 16,502.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.