Home / 20,694.84-28,558.62-11,263.38

Finding the Fourth Proportional to 20,694.84, 28,558.62 and 11,263.38

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Solution

The fourth proportional to 20,694.84, 28,558.62 and 11,263.38 is: 15,543.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.84 : 28,558.62 = 11,263.38 : x
  2. Step 2: Convert to fraction form
    20,694.84/28,558.62 = 11,263.38/x
  3. Step 3: Cross multiply
    20,694.84x = 28,558.62 × 11,263.38
  4. Step 4: Simplify right side
    20,694.84x = 321,666,589.34
  5. Step 5: Solve for x
    x = 321,666,589.34/20,694.84
  6. Step 6: Final answer
    x = 15,543.32

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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.