Home / 20,733.88-28,694.98-20,236.42

Finding the Fourth Proportional to 20,733.88, 28,694.98 and 20,236.42

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Solution

The fourth proportional to 20,733.88, 28,694.98 and 20,236.42 is: 28,006.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.88 : 28,694.98 = 20,236.42 : x
  2. Step 2: Convert to fraction form
    20,733.88/28,694.98 = 20,236.42/x
  3. Step 3: Cross multiply
    20,733.88x = 28,694.98 × 20,236.42
  4. Step 4: Simplify right side
    20,733.88x = 580,683,667.17
  5. Step 5: Solve for x
    x = 580,683,667.17/20,733.88
  6. Step 6: Final answer
    x = 28,006.51

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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.