Home / 20,694.68-28,558.50-11,263.28

Finding the Fourth Proportional to 20,694.68, 28,558.50 and 11,263.28

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Solution

The fourth proportional to 20,694.68, 28,558.50 and 11,263.28 is: 15,543.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,694.68 : 28,558.50 = 11,263.28 : x
  2. Step 2: Convert to fraction form
    20,694.68/28,558.50 = 11,263.28/x
  3. Step 3: Cross multiply
    20,694.68x = 28,558.50 × 11,263.28
  4. Step 4: Simplify right side
    20,694.68x = 321,662,381.88
  5. Step 5: Solve for x
    x = 321,662,381.88/20,694.68
  6. Step 6: Final answer
    x = 15,543.24

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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.