Home / 20,797.90-28,733.67-19,773.77

Finding the Fourth Proportional to 20,797.90, 28,733.67 and 19,773.77

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Solution

The fourth proportional to 20,797.90, 28,733.67 and 19,773.77 is: 27,318.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,797.90 : 28,733.67 = 19,773.77 : x
  2. Step 2: Convert to fraction form
    20,797.90/28,733.67 = 19,773.77/x
  3. Step 3: Cross multiply
    20,797.90x = 28,733.67 × 19,773.77
  4. Step 4: Simplify right side
    20,797.90x = 568,172,838.17
  5. Step 5: Solve for x
    x = 568,172,838.17/20,797.90
  6. Step 6: Final answer
    x = 27,318.76

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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.