Home / 20,626.80-28,465.01-11,195.36

Finding the Fourth Proportional to 20,626.80, 28,465.01 and 11,195.36

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Solution

The fourth proportional to 20,626.80, 28,465.01 and 11,195.36 is: 15,449.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,626.80 : 28,465.01 = 11,195.36 : x
  2. Step 2: Convert to fraction form
    20,626.80/28,465.01 = 11,195.36/x
  3. Step 3: Cross multiply
    20,626.80x = 28,465.01 × 11,195.36
  4. Step 4: Simplify right side
    20,626.80x = 318,676,034.35
  5. Step 5: Solve for x
    x = 318,676,034.35/20,626.80
  6. Step 6: Final answer
    x = 15,449.61

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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.