Home / 20,634.05-28,477.35-19,367.34

Finding the Fourth Proportional to 20,634.05, 28,477.35 and 19,367.34

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Solution

The fourth proportional to 20,634.05, 28,477.35 and 19,367.34 is: 26,729.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.05 : 28,477.35 = 19,367.34 : x
  2. Step 2: Convert to fraction form
    20,634.05/28,477.35 = 19,367.34/x
  3. Step 3: Cross multiply
    20,634.05x = 28,477.35 × 19,367.34
  4. Step 4: Simplify right side
    20,634.05x = 551,530,519.75
  5. Step 5: Solve for x
    x = 551,530,519.75/20,634.05
  6. Step 6: Final answer
    x = 26,729.15

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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.