Home / 20,535.46-28,338.92-11,104

Finding the Fourth Proportional to 20,535.46, 28,338.92 and 11,104

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Solution

The fourth proportional to 20,535.46, 28,338.92 and 11,104 is: 15,323.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,535.46 : 28,338.92 = 11,104 : x
  2. Step 2: Convert to fraction form
    20,535.46/28,338.92 = 11,104/x
  3. Step 3: Cross multiply
    20,535.46x = 28,338.92 × 11,104
  4. Step 4: Simplify right side
    20,535.46x = 314,675,312.16
  5. Step 5: Solve for x
    x = 314,675,312.16/20,535.46
  6. Step 6: Final answer
    x = 15,323.51

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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.